<PAGE> PAGE 1
000 A000000 09/30/97
000 C000000 0000751656
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 MFS MUNICIPAL SERIES TRUST
001 B000000 811-4096
001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 16
007 C010100 1
007 C020100 MFS MARYLAND MUNICIPAL BOND FUND
007 C030100 N
007 C010200 2
007 C020200 MFS NORTH CAROLINA MUNICIPAL BOND FUND
007 C030200 N
007 C010300 3
007 C020300 MFS SOUTH CAROLINA MUNICIPAL BOND FUND
007 C030300 N
007 C010400 4
007 C020400 MFS VIRGINIA MUNICIPAL BOND FUND
007 C030400 N
007 C010500 5
007 C020500 MFS WEST VIRGINIA MUNICIPAL BOND FUND
007 C030500 N
007 C010600 6
007 C020600 MFS MASSACHUSETTS MUNICIPAL BOND FUND
007 C030600 N
007 C010700 7
007 C020700 MFS GEORGIA MUNICIPAL BOND FUND
007 C030700 N
007 C010800 8
007 C010900 9
007 C011000 10
007 C011100 11
007 C021100 MFS NEW YORK MUNICIPAL BOND FUND
007 C031100 N
007 C011200 12
007 C011300 13
<PAGE> PAGE 2
007 C021300 MFS TENNESEE MUNICIPAL BOND FUND
007 C031300 N
007 C011400 14
007 C021400 MFS ALABAMA MUNICIPAL BOND FUND
007 C031400 N
007 C011500 15
007 C021500 MFS ARKANSAS MUNICIPAL BOND FUND
007 C031500 N
007 C011600 16
007 C011700 17
007 C021700 MFS FLORIDA MUNICIPAL BOND FUND
007 C031700 N
007 C011800 18
007 C021800 MFS MISSISSIPPI MUNICIPAL BOND FUND
007 C031800 N
007 C011900 19
007 C012000 20
007 C012100 21
007 C022100 MFS PENNSYLVANIA MUNICIPAL BOND FUND
007 C032100 N
007 C012200 22
007 C022200 MFS CALIFORNIA MUNICIPAL BOND FUND
007 C032200 N
007 C012300 23
007 C022300 MFS MUNICIPAL INCOME FUND
007 C032300 N
007 C012400 24
007 C012500 25
007 C012600 26
007 C012700 27
007 C012800 28
007 C012900 29
007 C013000 30
007 C013100 31
007 C013200 32
007 C013300 33
007 C013400 34
007 C013500 35
007 C013600 36
007 C013700 37
007 C013800 38
007 C013900 39
007 C014000 40
008 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B00AA01 A
008 C00AA01 801-17352
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02116
011 A00AA01 MFS FUND DISTRIBUTORS, INC.
011 B00AA01 8-27864
<PAGE> PAGE 3
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02116
012 A00AA01 MFS SERVICE CENTER, INC.
012 B00AA01 84-1316
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02116
013 A00AA01 DELOITTE & TOUCHE LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
015 A00AA01 STATE STREET BANK & TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02110
015 E01AA01 X
015 A00AA02 THE BANK OF NEW YORK
015 B00AA02 S
015 C01AA02 NEW YORK
015 C02AA02 NY
015 C03AA02 10286
015 E01AA02 X
015 A00AA03 CHEMICAL BANK
015 B00AA03 S
015 C01AA03 NEW YORK
015 C02AA03 NY
015 C03AA03 10041
015 E01AA03 X
015 A00AA04 MORGAN GUARANTY TRUST COMPANY
015 B00AA04 S
015 C01AA04 NEW YORK
015 C02AA04 NY
015 C03AA04 10015
015 E01AA04 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 54
019 C00AA00 MASSFINSER
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
<PAGE> PAGE 4
022 A000001 PAINE WEBBER
022 B000001 13-2638166
022 C000001 391135
022 D000001 410804
022 A000002 SMITH BARNEY
022 B000002 13-1912900
022 C000002 154348
022 D000002 90181
022 A000003 MORGAN (J.P.) SECURITIES
022 B000003 13-3224016
022 C000003 66767
022 D000003 66902
022 A000004 EQUITY SECURITIES
022 B000004 00-0000000
022 C000004 53949
022 D000004 38934
022 A000005 LEHMAN BROTHERS
022 B000005 13-2518466
022 C000005 25488
022 D000005 44625
022 A000006 DILLON, READ + CO.
022 B000006 00-0000000
022 C000006 32000
022 D000006 28200
022 A000007 CITICORP SECURITIES
022 B000007 00-0000000
022 C000007 34400
022 D000007 32200
022 A000008 PNC SECURITIES
022 B000008 00-0000000
022 C000008 28895
022 D000008 30345
022 A000009 MERRILL LYNCH
022 B000009 13-5674085
022 C000009 15293
022 D000009 38726
022 A000010 BANC ONE CAPITAL CORPORATION
022 B000010 00-0000000
022 C000010 25120
022 D000010 13620
023 C000000 1132194
023 D000000 1130295
024 00AA00 N
026 A000000 Y
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
<PAGE> PAGE 5
026 H000000 N
027 000000 Y
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 Y
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 N
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 N
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 N
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
077 A000000 N
078 000000 N
080 A00AA00 NATIONAL UNION INSURANCE CO.
080 B00AA00 ICI MUTUAL
080 C00AA00 0
081 A00AA00 N
081 B00AA00 0
082 A00AA00 Y
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
<PAGE> PAGE 6
086 E020000 0
086 F010000 0
086 F020000 0
025 D000101 0
025 D000102 0
025 D000103 0
025 D000104 0
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
028 A010100 1285
028 A020100 318
028 A030100 0
028 A040100 2330
028 B010100 1226
028 B020100 321
028 B030100 0
028 B040100 1569
028 C010100 1439
028 C020100 319
028 C030100 0
028 C040100 2835
028 D010100 564
028 D020100 314
028 D030100 0
028 D040100 1822
028 E010100 1256
028 E020100 311
028 E030100 0
028 E040100 1900
028 F010100 803
028 F020100 310
028 F030100 0
028 F040100 1154
028 G010100 6573
028 G020100 1893
028 G030100 0
028 G040100 11610
028 H000100 3507
029 000100 Y
030 A000100 110
030 B000100 4.75
030 C000100 0.00
031 A000100 21
031 B000100 0
032 000100 90
033 000100 0
034 000100 Y
035 000100 26
036 A000100 N
<PAGE> PAGE 7
036 B000100 0
042 A000100 0
042 B000100 0
042 C000100 42
042 D000100 58
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 315
044 000100 0
045 000100 Y
046 000100 N
047 000100 Y
048 000100 0.550
048 A010100 0
048 A020100 0.000
048 B010100 0
048 B020100 0.000
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 0
048 K020100 0.000
049 000100 N
050 000100 N
051 000100 N
052 000100 N
053 A000100 Y
053 B000100 Y
053 C000100 Y
055 A000100 N
055 B000100 N
056 000100 Y
057 000100 N
058 A000100 N
059 000100 Y
060 A000100 N
<PAGE> PAGE 8
060 B000100 N
061 000100 1000
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 2.2
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 96.4
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 0
063 B000100 16.7
064 A000100 Y
064 B000100 N
070 A010100 Y
070 A020100 N
070 B010100 N
070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 Y
070 E020100 Y
070 F010100 N
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 N
070 K010100 N
070 K020100 N
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 N
<PAGE> PAGE 9
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 14290
071 B000100 16769
071 C000100 139264
071 D000100 10
072 A000100 6
072 B000100 4407
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 400
072 G000100 11
072 H000100 0
072 I000100 94
072 J000100 30
072 K000100 8
072 L000100 13
072 M000100 9
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 14
072 S000100 1
072 T000100 316
072 U000100 0
072 V000100 0
072 W000100 41
072 X000100 937
072 Y000100 90
072 Z000100 3560
072AA000100 645
072BB000100 0
072CC010100 0
072CC020100 5496
072DD010100 3142
072DD020100 404
072EE000100 0
073 A010100 0.2800
073 A020100 0.2400
073 B000100 0.0000
073 C000100 0.0000
074 A000100 5
<PAGE> PAGE 10
074 B000100 0
074 C000100 3200
074 D000100 141538
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 260
074 K000100 0
074 L000100 2377
074 M000100 1
074 N000100 147381
074 O000100 0
074 P000100 12
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 570
074 S000100 0
074 T000100 146799
074 U010100 11188
074 U020100 1740
074 V010100 11.36
074 V020100 11.35
074 W000100 0.0000
074 X000100 4026
074 Y000100 0
075 A000100 0
075 B000100 145232
076 000100 0.00
025 D000201 0
025 D000202 0
025 D000203 0
025 D000204 0
025 D000205 0
025 D000206 0
025 D000207 0
025 D000208 0
028 A010200 2706
028 A020200 1046
028 A030200 0
028 A040200 5203
028 B010200 2725
028 B020200 1038
028 B030200 0
028 B040200 4614
028 C010200 2224
028 C020200 1030
028 C030200 0
<PAGE> PAGE 11
028 C040200 5895
028 D010200 3667
028 D020200 1011
028 D030200 0
028 D040200 5393
028 E010200 2171
028 E020200 1001
028 E030200 0
028 E040200 5456
028 F010200 2550
028 F020200 1001
028 F030200 0
028 F040200 6664
028 G010200 16043
028 G020200 6127
028 G030200 0
028 G040200 33225
028 H000200 10708
029 000200 Y
030 A000200 237
030 B000200 4.75
030 C000200 0.00
031 A000200 43
031 B000200 0
032 000200 194
033 000200 0
034 000200 Y
035 000200 53
036 A000200 N
036 B000200 0
042 A000200 0
042 B000200 0
042 C000200 35
042 D000200 65
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
043 000200 906
044 000200 0
045 000200 Y
046 000200 N
047 000200 Y
048 000200 0.550
048 A010200 0
048 A020200 0.000
048 B010200 0
048 B020200 0.000
048 C010200 0
048 C020200 0.000
048 D010200 0
<PAGE> PAGE 12
048 D020200 0.000
048 E010200 0
048 E020200 0.000
048 F010200 0
048 F020200 0.000
048 G010200 0
048 G020200 0.000
048 H010200 0
048 H020200 0.000
048 I010200 0
048 I020200 0.000
048 J010200 0
048 J020200 0.000
048 K010200 0
048 K020200 0.000
049 000200 N
050 000200 N
051 000200 N
052 000200 N
053 A000200 Y
053 B000200 Y
053 C000200 Y
055 A000200 N
055 B000200 N
056 000200 Y
057 000200 N
058 A000200 N
059 000200 Y
060 A000200 N
060 B000200 N
061 000200 1000
062 A000200 Y
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 0.6
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.7
062 M000200 0.0
062 N000200 0.0
062 O000200 98.7
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 18.8
<PAGE> PAGE 13
064 A000200 Y
064 B000200 N
070 A010200 Y
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 Y
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 Y
070 E020200 Y
070 F010200 N
070 F020200 N
070 G010200 Y
070 G020200 N
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 N
070 K010200 N
070 K020200 N
070 L010200 N
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 N
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 Y
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 52037
071 B000200 60534
071 C000200 421619
071 D000200 12
072 A000200 6
072 B000200 12966
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 1179
072 G000200 32
072 H000200 0
072 I000200 278
<PAGE> PAGE 14
072 J000200 84
072 K000200 14
072 L000200 20
072 M000200 8
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 14
072 S000200 3
072 T000200 906
072 U000200 0
072 V000200 0
072 W000200 69
072 X000200 2607
072 Y000200 239
072 Z000200 10598
072AA000200 2358
072BB000200 0
072CC010200 14213
072CC020200 0
072DD010200 9518
072DD020200 892
072EE000200 0
073 A010200 0.3000
073 A020200 0.2600
073 B000200 0.0000
073 C000200 0.0000
074 A000200 99
074 B000200 0
074 C000200 2400
074 D000200 423981
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 7424
074 K000200 0
074 L000200 7563
074 M000200 4
074 N000200 441471
074 O000200 10346
074 P000200 36
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 1562
074 S000200 0
074 T000200 429527
<PAGE> PAGE 15
074 U010200 31595
074 U020200 3575
074 V010200 12.01
074 V020200 12.01
074 W000200 0.0000
074 X000200 9352
074 Y000200 0
075 A000200 0
075 B000200 428374
076 000200 0.00
028 A010300 988
028 A020300 397
028 A030300 0
028 A040300 2158
028 B010300 2560
028 B020300 383
028 B030300 0
028 B040300 1850
028 C010300 1564
028 C020300 402
028 C030300 0
028 C040300 1550
028 D010300 1340
028 D020300 385
028 D030300 0
028 D040300 2169
028 E010300 1495
028 E020300 379
028 E030300 0
028 E040300 4391
028 F010300 1262
028 F020300 372
028 F030300 0
028 F040300 1509
028 G010300 9209
028 G020300 2318
028 G030300 0
028 G040300 13627
028 H000300 5348
029 000300 Y
030 A000300 112
030 B000300 4.75
030 C000300 0.00
031 A000300 19
031 B000300 0
032 000300 92
033 000300 0
034 000300 Y
035 000300 15
036 A000300 N
036 B000300 0
<PAGE> PAGE 16
042 A000300 0
042 B000300 0
042 C000300 43
042 D000300 57
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
043 000300 382
044 000300 0
045 000300 Y
046 000300 N
047 000300 Y
048 000300 0.550
048 A010300 0
048 A020300 0.000
048 B010300 0
048 B020300 0.000
048 C010300 0
048 C020300 0.000
048 D010300 0
048 D020300 0.000
048 E010300 0
048 E020300 0.000
048 F010300 0
048 F020300 0.000
048 G010300 0
048 G020300 0.000
048 H010300 0
048 H020300 0.000
048 I010300 0
048 I020300 0.000
048 J010300 0
048 J020300 0.000
048 K010300 0
048 K020300 0.000
049 000300 N
050 000300 N
051 000300 N
052 000300 N
053 A000300 Y
053 B000300 Y
053 C000300 Y
055 A000300 N
055 B000300 N
056 000300 Y
057 000300 N
058 A000300 N
059 000300 Y
060 A000300 N
060 B000300 N
<PAGE> PAGE 17
061 000300 1000
062 A000300 Y
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 1.7
062 F000300 0.0
062 G000300 0.0
062 H000300 0.0
062 I000300 0.0
062 J000300 0.0
062 K000300 0.0
062 L000300 0.0
062 M000300 0.0
062 N000300 0.0
062 O000300 96.7
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.0
063 A000300 0
063 B000300 17.4
064 A000300 Y
064 B000300 N
070 A010300 Y
070 A020300 N
070 B010300 N
070 B020300 N
070 C010300 Y
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 Y
070 E020300 Y
070 F010300 N
070 F020300 N
070 G010300 Y
070 G020300 N
070 H010300 N
070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 Y
070 J020300 N
070 K010300 N
070 K020300 N
070 L010300 N
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 N
070 N020300 N
<PAGE> PAGE 18
070 O010300 Y
070 O020300 N
070 P010300 Y
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300 23804
071 B000300 27565
071 C000300 168260
071 D000300 14
072 A000300 6
072 B000300 5289
072 C000300 0
072 D000300 0
072 E000300 0
072 F000300 479
072 G000300 13
072 H000300 0
072 I000300 113
072 J000300 36
072 K000300 5
072 L000300 8
072 M000300 9
072 N000300 0
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 14
072 S000300 2
072 T000300 383
072 U000300 0
072 V000300 0
072 W000300 46
072 X000300 1108
072 Y000300 95
072 Z000300 4276
072AA000300 1221
072BB000300 0
072CC010300 5338
072CC020300 0
072DD010300 3757
072DD020300 519
072EE000300 0
073 A010300 0.3000
073 A020300 0.2600
073 B000300 0.0000
073 C000300 0.0100
074 A000300 52
074 B000300 0
<PAGE> PAGE 19
074 C000300 2950
074 D000300 169544
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
074 J000300 555
074 K000300 0
074 L000300 2604
074 M000300 2
074 N000300 175707
074 O000300 0
074 P000300 15
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 477
074 S000300 0
074 T000300 175215
074 U010300 12120
074 U020300 2083
074 V010300 12.34
074 V020300 12.33
074 W000300 0.0000
074 X000300 3645
074 Y000300 0
075 A000300 0
075 B000300 173919
076 000300 0.00
028 A010400 2672
028 A020400 866
028 A030400 0
028 A040400 9445
028 B010400 4671
028 B020400 853
028 B030400 0
028 B040400 7049
028 C010400 2288
028 C020400 842
028 C030400 0
028 C040400 5566
028 D010400 4651
028 D020400 849
028 D030400 0
028 D040400 4733
028 E010400 4466
028 E020400 828
028 E030400 0
028 E040400 11336
<PAGE> PAGE 20
028 F010400 1245
028 F020400 836
028 F030400 0
028 F040400 3788
028 G010400 19993
028 G020400 5074
028 G030400 0
028 G040400 41917
028 H000400 17335
029 000400 Y
030 A000400 186
030 B000400 4.75
030 C000400 0.00
031 A000400 34
031 B000400 0
032 000400 152
033 000400 0
034 000400 Y
035 000400 38
036 A000400 N
036 B000400 0
042 A000400 0
042 B000400 0
042 C000400 37
042 D000400 63
042 E000400 0
042 F000400 0
042 G000400 0
042 H000400 0
043 000400 834
044 000400 0
045 000400 Y
046 000400 N
047 000400 Y
048 000400 0.550
048 A010400 0
048 A020400 0.000
048 B010400 0
048 B020400 0.000
048 C010400 0
048 C020400 0.000
048 D010400 0
048 D020400 0.000
048 E010400 0
048 E020400 0.000
048 F010400 0
048 F020400 0.000
048 G010400 0
048 G020400 0.000
048 H010400 0
048 H020400 0.000
<PAGE> PAGE 21
048 I010400 0
048 I020400 0.000
048 J010400 0
048 J020400 0.000
048 K010400 0
048 K020400 0.000
049 000400 N
050 000400 N
051 000400 N
052 000400 N
053 A000400 Y
053 B000400 Y
053 C000400 Y
055 A000400 Y
055 B000400 N
056 000400 Y
057 000400 N
058 A000400 N
059 000400 Y
060 A000400 N
060 B000400 N
061 000400 1000
062 A000400 Y
062 B000400 0.0
062 C000400 0.0
062 D000400 0.0
062 E000400 1.9
062 F000400 0.0
062 G000400 0.0
062 H000400 0.0
062 I000400 0.0
062 J000400 0.0
062 K000400 0.0
062 L000400 0.0
062 M000400 0.0
062 N000400 0.0
062 O000400 96.6
062 P000400 0.0
062 Q000400 0.0
062 R000400 0.0
063 A000400 0
063 B000400 16.7
064 A000400 Y
064 B000400 N
070 A010400 Y
070 A020400 N
070 B010400 N
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 N
<PAGE> PAGE 22
070 D020400 N
070 E010400 Y
070 E020400 Y
070 F010400 N
070 F020400 N
070 G010400 Y
070 G020400 N
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 Y
070 J020400 N
070 K010400 N
070 K020400 N
070 L010400 N
070 L020400 N
070 M010400 N
070 M020400 N
070 N010400 N
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 Y
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 N
070 R020400 N
071 A000400 69668
071 B000400 78452
071 C000400 395869
071 D000400 18
072 A000400 6
072 B000400 12605
072 C000400 0
072 D000400 0
072 E000400 0
072 F000400 1137
072 G000400 31
072 H000400 0
072 I000400 268
072 J000400 79
072 K000400 13
072 L000400 19
072 M000400 9
072 N000400 0
072 O000400 0
072 P000400 0
072 Q000400 0
072 R000400 14
<PAGE> PAGE 23
072 S000400 3
072 T000400 834
072 U000400 0
072 V000400 0
072 W000400 70
072 X000400 2477
072 Y000400 246
072 Z000400 10373
072AA000400 3006
072BB000400 0
072CC010400 13213
072CC020400 0
072DD010400 9611
072DD020400 688
072EE000400 0
073 A010400 0.2900
073 A020400 0.2500
073 B000400 0.0000
073 C000400 0.0000
074 A000400 73
074 B000400 0
074 C000400 7900
074 D000400 398219
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 0
074 J000400 1013
074 K000400 0
074 L000400 6422
074 M000400 4
074 N000400 413631
074 O000400 0
074 P000400 34
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 1315
074 S000400 0
074 T000400 412282
074 U010400 32812
074 U020400 2749
074 V010400 11.50
074 V020400 11.50
074 W000400 0.0000
074 X000400 8884
074 Y000400 0
075 A000400 0
075 B000400 412920
<PAGE> PAGE 24
076 000400 0.00
028 A010500 853
028 A020500 330
028 A030500 0
028 A040500 1101
028 B010500 805
028 B020500 325
028 B030500 0
028 B040500 1964
028 C010500 1325
028 C020500 322
028 C030500 0
028 C040500 1309
028 D010500 880
028 D020500 315
028 D030500 0
028 D040500 606
028 E010500 1178
028 E020500 322
028 E030500 0
028 E040500 833
028 F010500 417
028 F020500 326
028 F030500 0
028 F040500 825
028 G010500 5458
028 G020500 1940
028 G030500 0
028 G040500 6639
028 H000500 4087
029 000500 Y
030 A000500 149
030 B000500 4.75
030 C000500 0.00
031 A000500 27
031 B000500 0
032 000500 122
033 000500 0
034 000500 Y
035 000500 18
036 A000500 N
036 B000500 0
042 A000500 0
042 B000500 0
042 C000500 40
042 D000500 60
042 E000500 0
042 F000500 0
042 G000500 0
042 H000500 0
043 000500 295
<PAGE> PAGE 25
044 000500 0
045 000500 Y
046 000500 N
047 000500 Y
048 000500 0.550
048 A010500 0
048 A020500 0.000
048 B010500 0
048 B020500 0.000
048 C010500 0
048 C020500 0.000
048 D010500 0
048 D020500 0.000
048 E010500 0
048 E020500 0.000
048 F010500 0
048 F020500 0.000
048 G010500 0
048 G020500 0.000
048 H010500 0
048 H020500 0.000
048 I010500 0
048 I020500 0.000
048 J010500 0
048 J020500 0.000
048 K010500 0
048 K020500 0.000
049 000500 N
050 000500 N
051 000500 N
052 000500 N
053 A000500 Y
053 B000500 Y
053 C000500 Y
055 A000500 N
055 B000500 N
056 000500 Y
057 000500 N
058 A000500 N
059 000500 Y
060 A000500 N
060 B000500 N
061 000500 1000
062 A000500 Y
062 B000500 0.0
062 C000500 0.0
062 D000500 0.0
062 E000500 1.3
062 F000500 0.0
062 G000500 0.0
062 H000500 0.0
<PAGE> PAGE 26
062 I000500 0.0
062 J000500 0.0
062 K000500 0.0
062 L000500 0.0
062 M000500 0.0
062 N000500 0.0
062 O000500 95.0
062 P000500 0.0
062 Q000500 0.0
062 R000500 0.0
063 A000500 0
063 B000500 18.6
064 A000500 Y
064 B000500 N
070 A010500 Y
070 A020500 N
070 B010500 N
070 B020500 N
070 C010500 Y
070 C020500 N
070 D010500 N
070 D020500 N
070 E010500 Y
070 E020500 Y
070 F010500 N
070 F020500 N
070 G010500 Y
070 G020500 N
070 H010500 N
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 Y
070 J020500 N
070 K010500 N
070 K020500 N
070 L010500 N
070 L020500 N
070 M010500 N
070 M020500 N
070 N010500 N
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 Y
070 P020500 N
070 Q010500 N
070 Q020500 N
070 R010500 N
070 R020500 N
071 A000500 11858
<PAGE> PAGE 27
071 B000500 13769
071 C000500 136956
071 D000500 9
072 A000500 6
072 B000500 4351
072 C000500 0
072 D000500 0
072 E000500 0
072 F000500 390
072 G000500 11
072 H000500 0
072 I000500 92
072 J000500 29
072 K000500 4
072 L000500 7
072 M000500 9
072 N000500 0
072 O000500 0
072 P000500 0
072 Q000500 0
072 R000500 14
072 S000500 2
072 T000500 295
072 U000500 0
072 V000500 0
072 W000500 38
072 X000500 891
072 Y000500 30
072 Z000500 3491
072AA000500 0
072BB000500 14
072CC010500 4524
072CC020500 0
072DD010500 3181
072DD020500 309
072EE000500 0
073 A010500 0.3000
073 A020500 0.2600
073 B000500 0.0000
073 C000500 0.0000
074 A000500 85
074 B000500 0
074 C000500 1900
074 D000500 137597
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 0
074 J000500 3023
074 K000500 0
<PAGE> PAGE 28
074 L000500 2664
074 M000500 2
074 N000500 145271
074 O000500 0
074 P000500 12
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 413
074 S000500 0
074 T000500 144846
074 U010500 11153
074 U020500 1263
074 V010500 11.67
074 V020500 11.66
074 W000500 0.0000
074 X000500 3269
074 Y000500 0
075 A000500 0
075 B000500 142084
076 000500 0.00
028 A010600 7423
028 A020600 512
028 A030600 0
028 A040600 6894
028 B010600 5892
028 B020600 513
028 B030600 0
028 B040600 7570
028 C010600 4735
028 C020600 512
028 C030600 0
028 C040600 7285
028 D010600 3969
028 D020600 512
028 D030600 0
028 D040600 3125
028 E010600 3975
028 E020600 497
028 E030600 0
028 E040600 7586
028 F010600 7812
028 F020600 492
028 F030600 0
028 F040600 10165
028 G010600 33806
028 G020600 3038
028 G030600 0
028 G040600 42626
028 H000600 32106
<PAGE> PAGE 29
029 000600 Y
030 A000600 96
030 B000600 4.75
030 C000600 0.00
031 A000600 17
031 B000600 0
032 000600 79
033 000600 0
034 000600 Y
035 000600 21
036 A000600 N
036 B000600 0
042 A000600 0
042 B000600 0
042 C000600 36
042 D000600 64
042 E000600 0
042 F000600 0
042 G000600 0
042 H000600 0
043 000600 498
044 000600 0
045 000600 Y
046 000600 N
047 000600 Y
048 000600 0.550
048 A010600 0
048 A020600 0.000
048 B010600 0
048 B020600 0.000
048 C010600 0
048 C020600 0.000
048 D010600 0
048 D020600 0.000
048 E010600 0
048 E020600 0.000
048 F010600 0
048 F020600 0.000
048 G010600 0
048 G020600 0.000
048 H010600 0
048 H020600 0.000
048 I010600 0
048 I020600 0.000
048 J010600 0
048 J020600 0.000
048 K010600 0
048 K020600 0.000
049 000600 N
050 000600 N
051 000600 N
<PAGE> PAGE 30
052 000600 N
053 A000600 Y
053 B000600 Y
053 C000600 Y
055 A000600 N
055 B000600 N
056 000600 Y
057 000600 N
058 A000600 N
059 000600 Y
060 A000600 N
060 B000600 N
061 000600 1000
062 A000600 Y
062 B000600 0.0
062 C000600 0.0
062 D000600 0.0
062 E000600 1.5
062 F000600 0.0
062 G000600 0.0
062 H000600 0.0
062 I000600 0.0
062 J000600 0.0
062 K000600 0.0
062 L000600 0.0
062 M000600 0.0
062 N000600 0.0
062 O000600 98.6
062 P000600 0.0
062 Q000600 0.0
062 R000600 0.0
063 A000600 0
063 B000600 17.1
064 A000600 Y
064 B000600 N
070 A010600 Y
070 A020600 N
070 B010600 N
070 B020600 N
070 C010600 Y
070 C020600 N
070 D010600 N
070 D020600 N
070 E010600 Y
070 E020600 N
070 F010600 N
070 F020600 N
070 G010600 Y
070 G020600 N
070 H010600 N
070 H020600 N
<PAGE> PAGE 31
070 I010600 N
070 I020600 N
070 J010600 Y
070 J020600 N
070 K010600 N
070 K020600 N
070 L010600 N
070 L020600 N
070 M010600 N
070 M020600 N
070 N010600 N
070 N020600 N
070 O010600 Y
070 O020600 N
070 P010600 Y
070 P020600 N
070 Q010600 N
070 Q020600 N
070 R010600 N
070 R020600 N
071 A000600 31246
071 B000600 32887
071 C000600 247405
071 D000600 13
072 A000600 6
072 B000600 8072
072 C000600 0
072 D000600 0
072 E000600 0
072 F000600 699
072 G000600 19
072 H000600 0
072 I000600 165
072 J000600 52
072 K000600 8
072 L000600 15
072 M000600 10
072 N000600 0
072 O000600 0
072 P000600 0
072 Q000600 0
072 R000600 14
072 S000600 2
072 T000600 496
072 U000600 0
072 V000600 0
072 W000600 51
072 X000600 1531
072 Y000600 144
072 Z000600 6685
072AA000600 0
<PAGE> PAGE 32
072BB000600 589
072CC010600 9173
072CC020600 0
072DD010600 6333
072DD020600 372
072EE000600 0
073 A010600 0.3000
073 A020600 0.2600
073 B000600 0.0000
073 C000600 0.0000
074 A000600 5
074 B000600 0
074 C000600 3700
074 D000600 250465
074 E000600 0
074 F000600 0
074 G000600 0
074 H000600 0
074 I000600 0
074 J000600 157
074 K000600 0
074 L000600 4952
074 M000600 2
074 N000600 259281
074 O000600 1212
074 P000600 21
074 Q000600 0
074 R010600 0
074 R020600 0
074 R030600 0
074 R040600 4013
074 S000600 0
074 T000600 254035
074 U010600 21055
074 U020600 1456
074 V010600 11.28
074 V020600 11.29
074 W000600 0.0000
074 X000600 4538
074 Y000600 0
075 A000600 0
075 B000600 253734
076 000600 0.00
028 A010700 356
028 A020700 159
028 A030700 0
028 A040700 1412
028 B010700 288
028 B020700 159
028 B030700 0
028 B040700 690
<PAGE> PAGE 33
028 C010700 615
028 C020700 158
028 C030700 0
028 C040700 344
028 D010700 425
028 D020700 158
028 D030700 0
028 D040700 549
028 E010700 588
028 E020700 153
028 E030700 0
028 E040700 947
028 F010700 531
028 F020700 152
028 F030700 0
028 F040700 1413
028 G010700 2803
028 G020700 939
028 G030700 0
028 G040700 5355
028 H000700 1567
029 000700 Y
030 A000700 45
030 B000700 4.75
030 C000700 0.00
031 A000700 8
031 B000700 0
032 000700 37
033 000700 0
034 000700 Y
035 000700 14
036 A000700 N
036 B000700 0
042 A000700 0
042 B000700 0
042 C000700 30
042 D000700 70
042 E000700 0
042 F000700 0
042 G000700 0
042 H000700 0
043 000700 127
044 000700 0
045 000700 Y
046 000700 N
047 000700 Y
048 000700 0.550
048 A010700 0
048 A020700 0.000
048 B010700 0
048 B020700 0.000
<PAGE> PAGE 34
048 C010700 0
048 C020700 0.000
048 D010700 0
048 D020700 0.000
048 E010700 0
048 E020700 0.000
048 F010700 0
048 F020700 0.000
048 G010700 0
048 G020700 0.000
048 H010700 0
048 H020700 0.000
048 I010700 0
048 I020700 0.000
048 J010700 0
048 J020700 0.000
048 K010700 0
048 K020700 0.000
049 000700 N
050 000700 N
051 000700 N
052 000700 N
053 A000700 Y
053 B000700 Y
053 C000700 Y
055 A000700 N
055 B000700 N
056 000700 Y
057 000700 N
058 A000700 N
059 000700 Y
060 A000700 N
060 B000700 N
061 000700 1000
062 A000700 Y
062 B000700 0.0
062 C000700 0.0
062 D000700 0.0
062 E000700 0.3
062 F000700 0.0
062 G000700 0.0
062 H000700 0.0
062 I000700 0.0
062 J000700 0.0
062 K000700 0.0
062 L000700 0.0
062 M000700 0.0
062 N000700 0.0
062 O000700 98.1
062 P000700 0.0
062 Q000700 0.0
<PAGE> PAGE 35
062 R000700 0.0
063 A000700 0
063 B000700 16.2
064 A000700 Y
064 B000700 N
070 A010700 Y
070 A020700 N
070 B010700 N
070 B020700 N
070 C010700 Y
070 C020700 N
070 D010700 N
070 D020700 N
070 E010700 Y
070 E020700 Y
070 F010700 N
070 F020700 N
070 G010700 Y
070 G020700 N
070 H010700 N
070 H020700 N
070 I010700 N
070 I020700 N
070 J010700 Y
070 J020700 N
070 K010700 N
070 K020700 N
070 L010700 N
070 L020700 N
070 M010700 N
070 M020700 N
070 N010700 N
070 N020700 N
070 O010700 Y
070 O020700 N
070 P010700 Y
070 P020700 N
070 Q010700 N
070 Q020700 N
070 R010700 N
070 R020700 N
071 A000700 7546
071 B000700 7271
071 C000700 67880
071 D000700 10
072 A000700 6
072 B000700 2202
072 C000700 0
072 D000700 0
072 E000700 0
072 F000700 194
<PAGE> PAGE 36
072 G000700 5
072 H000700 0
072 I000700 46
072 J000700 14
072 K000700 2
072 L000700 7
072 M000700 9
072 N000700 0
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 14
072 S000700 1
072 T000700 127
072 U000700 0
072 V000700 0
072 W000700 26
072 X000700 445
072 Y000700 44
072 Z000700 1801
072AA000700 0
072BB000700 536
072CC010700 3151
072CC020700 0
072DD010700 1574
072DD020700 230
072EE000700 0
073 A010700 0.2800
073 A020700 0.2400
073 B000700 0.0000
073 C000700 0.0000
074 A000700 75
074 B000700 0
074 C000700 210
074 D000700 70027
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 0
074 J000700 115
074 K000700 0
074 L000700 1230
074 M000700 1
074 N000700 71658
074 O000700 79
074 P000700 6
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
<PAGE> PAGE 37
074 R040700 201
074 S000700 0
074 T000700 71372
074 U010700 5586
074 U020700 988
074 V010700 10.86
074 V020700 10.86
074 W000700 0.0000
074 X000700 1696
074 Y000700 0
075 A000700 0
075 B000700 70610
076 000700 0.00
028 A011100 2788
028 A021100 351
028 A031100 0
028 A041100 4404
028 B011100 2662
028 B021100 346
028 B031100 0
028 B041100 4319
028 C011100 2385
028 C021100 343
028 C031100 0
028 C041100 4517
028 D011100 3434
028 D021100 343
028 D031100 0
028 D041100 4506
028 E011100 1766
028 E021100 343
028 E031100 0
028 E041100 3876
028 F011100 2778
028 F021100 343
028 F031100 0
028 F041100 4569
028 G011100 15814
028 G021100 2069
028 G031100 0
028 G041100 26192
028 H001100 13850
029 001100 Y
030 A001100 67
030 B001100 4.75
030 C001100 0.00
031 A001100 7
031 B001100 0
032 001100 60
033 001100 0
034 001100 Y
<PAGE> PAGE 38
035 001100 38
036 A001100 N
036 B001100 0
042 A001100 0
042 B001100 0
042 C001100 31
042 D001100 69
042 E001100 0
042 F001100 0
042 G001100 0
042 H001100 0
043 001100 283
044 001100 0
045 001100 Y
046 001100 N
047 001100 Y
048 001100 0.550
048 A011100 0
048 A021100 0.000
048 B011100 0
048 B021100 0.000
048 C011100 0
048 C021100 0.000
048 D011100 0
048 D021100 0.000
048 E011100 0
048 E021100 0.000
048 F011100 0
048 F021100 0.000
048 G011100 0
048 G021100 0.000
048 H011100 0
048 H021100 0.000
048 I011100 0
048 I021100 0.000
048 J011100 0
048 J021100 0.000
048 K011100 0
048 K021100 0.000
049 001100 N
050 001100 N
051 001100 N
052 001100 N
053 A001100 Y
053 B001100 N
053 C001100 Y
055 A001100 N
055 B001100 N
056 001100 Y
057 001100 N
058 A001100 N
<PAGE> PAGE 39
059 001100 Y
060 A001100 N
060 B001100 N
061 001100 1000
062 A001100 Y
062 B001100 0.0
062 C001100 0.0
062 D001100 0.0
062 E001100 0.8
062 F001100 0.0
062 G001100 0.0
062 H001100 0.0
062 I001100 0.0
062 J001100 0.0
062 K001100 0.0
062 L001100 0.0
062 M001100 0.0
062 N001100 0.0
062 O001100 99.2
062 P001100 0.0
062 Q001100 0.0
062 R001100 0.0
063 A001100 0
063 B001100 15.8
064 A001100 Y
064 B001100 Y
065 001100 N
070 A011100 Y
070 A021100 N
070 B011100 N
070 B021100 N
070 C011100 Y
070 C021100 N
070 D011100 N
070 D021100 N
070 E011100 Y
070 E021100 Y
070 F011100 N
070 F021100 N
070 G011100 Y
070 G021100 N
070 H011100 N
070 H021100 N
070 I011100 N
070 I021100 N
070 J011100 Y
070 J021100 N
070 K011100 N
070 K021100 N
070 L011100 N
070 L021100 N
<PAGE> PAGE 40
070 M011100 N
070 M021100 N
070 N011100 N
070 N021100 N
070 O011100 Y
070 O021100 N
070 P011100 Y
070 P021100 N
070 Q011100 N
070 Q021100 N
070 R011100 N
070 R021100 N
071 A001100 38197
071 B001100 44046
071 C001100 144817
071 D001100 26
072 A001100 6
072 B001100 4697
072 C001100 0
072 D001100 0
072 E001100 0
072 F001100 405
072 G001100 11
072 H001100 0
072 I001100 96
072 J001100 30
072 K001100 5
072 L001100 8
072 M001100 10
072 N001100 0
072 O001100 0
072 P001100 0
072 Q001100 0
072 R001100 14
072 S001100 1
072 T001100 283
072 U001100 0
072 V001100 0
072 W001100 54
072 X001100 918
072 Y001100 35
072 Z001100 3814
072AA001100 96
072BB001100 0
072CC011100 6637
072CC021100 0
072DD011100 3051
072DD021100 561
072EE001100 0
073 A011100 0.2700
073 A021100 0.2300
<PAGE> PAGE 41
073 B001100 0.0000
073 C001100 0.0000
074 A001100 23
074 B001100 0
074 C001100 1100
074 D001100 145615
074 E001100 0
074 F001100 0
074 G001100 0
074 H001100 0
074 I001100 0
074 J001100 105
074 K001100 0
074 L001100 2230
074 M001100 1
074 N001100 149074
074 O001100 1506
074 P001100 12
074 Q001100 0
074 R011100 0
074 R021100 0
074 R031100 0
074 R041100 814
074 S001100 0
074 T001100 146742
074 U011100 10815
074 U021100 2399
074 V011100 11.11
074 V021100 11.10
074 W001100 0.0000
074 X001100 3593
074 Y001100 0
075 A001100 0
075 B001100 147872
076 001100 0.00
028 A011300 860
028 A021300 260
028 A031300 0
028 A041300 1815
028 B011300 1962
028 B021300 262
028 B031300 0
028 B041300 845
028 C011300 912
028 C021300 263
028 C031300 0
028 C041300 1253
028 D011300 1146
028 D021300 263
028 D031300 0
028 D041300 2559
<PAGE> PAGE 42
028 E011300 1056
028 E021300 259
028 E031300 0
028 E041300 1532
028 F011300 1411
028 F021300 253
028 F031300 0
028 F041300 2891
028 G011300 7348
028 G021300 1560
028 G031300 0
028 G041300 10895
028 H001300 4562
029 001300 Y
030 A001300 113
030 B001300 4.75
030 C001300 0.00
031 A001300 21
031 B001300 0
032 001300 92
033 001300 0
034 001300 Y
035 001300 34
036 A001300 N
036 B001300 0
042 A001300 0
042 B001300 0
042 C001300 39
042 D001300 61
042 E001300 0
042 F001300 0
042 G001300 0
042 H001300 0
043 001300 269
044 001300 0
045 001300 Y
046 001300 N
047 001300 Y
048 001300 0.550
048 A011300 0
048 A021300 0.000
048 B011300 0
048 B021300 0.000
048 C011300 0
048 C021300 0.000
048 D011300 0
048 D021300 0.000
048 E011300 0
048 E021300 0.000
048 F011300 0
048 F021300 0.000
<PAGE> PAGE 43
048 G011300 0
048 G021300 0.000
048 H011300 0
048 H021300 0.000
048 I011300 0
048 I021300 0.000
048 J011300 0
048 J021300 0.000
048 K011300 0
048 K021300 0.000
049 001300 N
050 001300 N
051 001300 N
052 001300 N
053 A001300 Y
053 B001300 Y
053 C001300 Y
055 A001300 N
055 B001300 N
056 001300 Y
057 001300 N
058 A001300 N
059 001300 Y
060 A001300 N
060 B001300 N
061 001300 1000
062 A001300 Y
062 B001300 0.0
062 C001300 0.0
062 D001300 0.0
062 E001300 1.6
062 F001300 0.0
062 G001300 0.0
062 H001300 0.0
062 I001300 0.0
062 J001300 0.0
062 K001300 0.0
062 L001300 0.0
062 M001300 0.0
062 N001300 0.0
062 O001300 98.5
062 P001300 0.0
062 Q001300 0.0
062 R001300 0.0
063 A001300 0
063 B001300 18.1
064 A001300 Y
064 B001300 N
070 A011300 Y
070 A021300 N
070 B011300 N
<PAGE> PAGE 44
070 B021300 N
070 C011300 Y
070 C021300 N
070 D011300 N
070 D021300 N
070 E011300 Y
070 E021300 N
070 F011300 N
070 F021300 N
070 G011300 Y
070 G021300 N
070 H011300 N
070 H021300 N
070 I011300 N
070 I021300 N
070 J011300 Y
070 J021300 N
070 K011300 N
070 K021300 N
070 L011300 N
070 L021300 N
070 M011300 N
070 M021300 N
070 N011300 N
070 N021300 N
070 O011300 Y
070 O021300 N
070 P011300 Y
070 P021300 N
070 Q011300 N
070 Q021300 N
070 R011300 N
070 R021300 N
071 A001300 21677
071 B001300 21762
071 C001300 120845
071 D001300 18
072 A001300 6
072 B001300 3837
072 C001300 0
072 D001300 0
072 E001300 0
072 F001300 344
072 G001300 9
072 H001300 0
072 I001300 81
072 J001300 27
072 K001300 3
072 L001300 5
072 M001300 9
072 N001300 0
<PAGE> PAGE 45
072 O001300 0
072 P001300 0
072 Q001300 0
072 R001300 16
072 S001300 3
072 T001300 269
072 U001300 0
072 V001300 0
072 W001300 32
072 X001300 798
072 Y001300 72
072 Z001300 3111
072AA001300 0
072BB001300 874
072CC011300 4414
072CC021300 0
072DD011300 2794
072DD021300 346
072EE001300 0
073 A011300 0.2700
073 A021300 0.2400
073 B001300 0.0000
073 C001300 0.0000
074 A001300 21
074 B001300 0
074 C001300 2000
074 D001300 123790
074 E001300 0
074 F001300 0
074 G001300 0
074 H001300 0
074 I001300 0
074 J001300 1944
074 K001300 0
074 L001300 1975
074 M001300 1
074 N001300 129731
074 O001300 0
074 P001300 11
074 Q001300 0
074 R011300 0
074 R021300 0
074 R031300 0
074 R041300 4013
074 S001300 0
074 T001300 125707
074 U011300 10153
074 U021300 1532
074 V011300 10.76
074 V021300 10.75
074 W001300 0.0000
<PAGE> PAGE 46
074 X001300 2392
074 Y001300 0
075 A001300 0
075 B001300 124822
076 001300 0.00
028 A011400 362
028 A021400 144
028 A031400 0
028 A041400 524
028 B011400 190
028 B021400 141
028 B031400 0
028 B041400 1020
028 C011400 343
028 C021400 140
028 C031400 0
028 C041400 739
028 D011400 276
028 D021400 142
028 D031400 0
028 D041400 625
028 E011400 141
028 E021400 139
028 E031400 0
028 E041400 1163
028 F011400 213
028 F021400 140
028 F031400 0
028 F041400 1019
028 G011400 1525
028 G021400 846
028 G031400 0
028 G041400 5090
028 H001400 1163
029 001400 Y
030 A001400 34
030 B001400 4.75
030 C001400 0.00
031 A001400 6
031 B001400 0
032 001400 28
033 001400 0
034 001400 Y
035 001400 13
036 A001400 N
036 B001400 0
042 A001400 0
042 B001400 0
042 C001400 21
042 D001400 79
042 E001400 0
<PAGE> PAGE 47
042 F001400 0
042 G001400 0
042 H001400 0
043 001400 135
044 001400 0
045 001400 Y
046 001400 N
047 001400 Y
048 001400 0.550
048 A011400 0
048 A021400 0.000
048 B011400 0
048 B021400 0.000
048 C011400 0
048 C021400 0.000
048 D011400 0
048 D021400 0.000
048 E011400 0
048 E021400 0.000
048 F011400 0
048 F021400 0.000
048 G011400 0
048 G021400 0.000
048 H011400 0
048 H021400 0.000
048 I011400 0
048 I021400 0.000
048 J011400 0
048 J021400 0.000
048 K011400 0
048 K021400 0.000
049 001400 N
050 001400 N
051 001400 N
052 001400 N
053 A001400 Y
053 B001400 N
053 C001400 Y
055 A001400 N
055 B001400 N
056 001400 Y
057 001400 N
058 A001400 N
059 001400 Y
060 A001400 N
060 B001400 N
061 001400 1000
062 A001400 Y
062 B001400 0.0
062 C001400 0.0
062 D001400 0.0
<PAGE> PAGE 48
062 E001400 0.5
062 F001400 0.0
062 G001400 0.0
062 H001400 0.0
062 I001400 0.0
062 J001400 0.0
062 K001400 0.0
062 L001400 0.0
062 M001400 0.0
062 N001400 0.0
062 O001400 97.9
062 P001400 0.0
062 Q001400 0.0
062 R001400 0.0
063 A001400 0
063 B001400 17.5
064 A001400 Y
064 B001400 N
070 A011400 Y
070 A021400 N
070 B011400 N
070 B021400 N
070 C011400 Y
070 C021400 N
070 D011400 N
070 D021400 N
070 E011400 Y
070 E021400 N
070 F011400 N
070 F021400 N
070 G011400 Y
070 G021400 N
070 H011400 N
070 H021400 N
070 I011400 N
070 I021400 N
070 J011400 Y
070 J021400 N
070 K011400 N
070 K021400 N
070 L011400 N
070 L021400 N
070 M011400 N
070 M021400 N
070 N011400 N
070 N021400 N
070 O011400 Y
070 O021400 N
070 P011400 Y
070 P021400 N
070 Q011400 N
<PAGE> PAGE 49
070 Q021400 N
070 R011400 N
070 R021400 N
071 A001400 9946
071 B001400 11748
071 C001400 82491
071 D001400 12
072 A001400 6
072 B001400 2640
072 C001400 0
072 D001400 0
072 E001400 0
072 F001400 233
072 G001400 6
072 H001400 0
072 I001400 55
072 J001400 18
072 K001400 2
072 L001400 5
072 M001400 10
072 N001400 0
072 O001400 0
072 P001400 0
072 Q001400 0
072 R001400 14
072 S001400 1
072 T001400 135
072 U001400 0
072 V001400 0
072 W001400 27
072 X001400 506
072 Y001400 19
072 Z001400 2153
072AA001400 482
072BB001400 0
072CC011400 0
072CC021400 2301
072DD011400 2012
072DD021400 164
072EE001400 0
073 A011400 0.2800
073 A021400 0.5900
073 B001400 0.0000
073 C001400 0.0000
074 A001400 70
074 B001400 0
074 C001400 400
074 D001400 82484
074 E001400 0
074 F001400 0
074 G001400 0
<PAGE> PAGE 50
074 H001400 0
074 I001400 0
074 J001400 1321
074 K001400 0
074 L001400 1336
074 M001400 1
074 N001400 85612
074 O001400 967
074 P001400 7
074 Q001400 0
074 R011400 0
074 R021400 0
074 R031400 0
074 R041400 386
074 S001400 0
074 T001400 84252
074 U011400 7126
074 U021400 655
074 V011400 10.83
074 V021400 10.83
074 W001400 0.0000
074 X001400 1372
074 Y001400 0
075 A001400 0
075 B001400 84815
076 001400 0.00
028 A011500 328
028 A021500 287
028 A031500 0
028 A041500 3347
028 B011500 576
028 B021500 279
028 B031500 0
028 B041500 2784
028 C011500 1237
028 C021500 282
028 C031500 0
028 C041500 1882
028 D011500 630
028 D021500 280
028 D031500 0
028 D041500 2954
028 E011500 559
028 E021500 281
028 E031500 0
028 E041500 3082
028 F011500 241
028 F021500 279
028 F031500 0
028 F041500 1673
028 G011500 3571
<PAGE> PAGE 51
028 G021500 1688
028 G031500 0
028 G041500 15722
028 H001500 3179
029 001500 Y
030 A001500 60
030 B001500 4.75
030 C001500 0.00
031 A001500 11
031 B001500 0
032 001500 49
033 001500 0
034 001500 Y
035 001500 9
036 A001500 N
036 B001500 0
042 A001500 0
042 B001500 0
042 C001500 27
042 D001500 73
042 E001500 0
042 F001500 0
042 G001500 0
042 H001500 0
043 001500 103
044 001500 0
045 001500 Y
046 001500 N
047 001500 Y
048 001500 0.550
048 A011500 0
048 A021500 0.000
048 B011500 0
048 B021500 0.000
048 C011500 0
048 C021500 0.000
048 D011500 0
048 D021500 0.000
048 E011500 0
048 E021500 0.000
048 F011500 0
048 F021500 0.000
048 G011500 0
048 G021500 0.000
048 H011500 0
048 H021500 0.000
048 I011500 0
048 I021500 0.000
048 J011500 0
048 J021500 0.000
048 K011500 0
<PAGE> PAGE 52
048 K021500 0.000
049 001500 N
050 001500 N
051 001500 N
052 001500 N
053 A001500 Y
053 B001500 N
053 C001500 Y
055 A001500 Y
055 B001500 N
056 001500 Y
057 001500 N
058 A001500 N
059 001500 Y
060 A001500 N
060 B001500 N
061 001500 1000
062 A001500 Y
062 B001500 0.0
062 C001500 0.0
062 D001500 0.0
062 E001500 1.6
062 F001500 0.0
062 G001500 0.0
062 H001500 0.0
062 I001500 0.0
062 J001500 0.0
062 K001500 0.0
062 L001500 0.0
062 M001500 0.0
062 N001500 0.0
062 O001500 97.4
062 P001500 0.0
062 Q001500 0.0
062 R001500 0.0
063 A001500 0
063 B001500 16.3
064 A001500 Y
064 B001500 N
070 A011500 Y
070 A021500 N
070 B011500 N
070 B021500 N
070 C011500 Y
070 C021500 N
070 D011500 N
070 D021500 N
070 E011500 Y
070 E021500 N
070 F011500 N
070 F021500 N
<PAGE> PAGE 53
070 G011500 Y
070 G021500 N
070 H011500 N
070 H021500 N
070 I011500 N
070 I021500 N
070 J011500 Y
070 J021500 N
070 K011500 N
070 K021500 N
070 L011500 N
070 L021500 N
070 M011500 N
070 M021500 N
070 N011500 N
070 N021500 N
070 O011500 Y
070 O021500 N
070 P011500 Y
070 P021500 N
070 Q011500 N
070 Q021500 N
070 R011500 N
070 R021500 N
071 A001500 13338
071 B001500 25568
071 C001500 144439
071 D001500 9
072 A001500 6
072 B001500 4382
072 C001500 0
072 D001500 0
072 E001500 0
072 F001500 408
072 G001500 11
072 H001500 0
072 I001500 97
072 J001500 31
072 K001500 6
072 L001500 9
072 M001500 9
072 N001500 0
072 O001500 0
072 P001500 0
072 Q001500 0
072 R001500 14
072 S001500 1
072 T001500 103
072 U001500 0
072 V001500 0
072 W001500 33
<PAGE> PAGE 54
072 X001500 722
072 Y001500 31
072 Z001500 3691
072AA001500 0
072BB001500 56
072CC011500 5284
072CC021500 0
072DD011500 3530
072DD021500 161
072EE001500 39
073 A011500 0.2500
073 A021500 0.2100
073 B001500 0.0000
073 C001500 0.0000
074 A001500 99
074 B001500 0
074 C001500 2400
074 D001500 142644
074 E001500 0
074 F001500 0
074 G001500 0
074 H001500 0
074 I001500 0
074 J001500 18
074 K001500 0
074 L001500 2177
074 M001500 1
074 N001500 147339
074 O001500 0
074 P001500 8
074 Q001500 0
074 R011500 0
074 R021500 0
074 R031500 0
074 R041500 797
074 S001500 0
074 T001500 146534
074 U011500 13796
074 U021500 757
074 V011500 10.07
074 V021500 10.07
074 W001500 0.0000
074 X001500 2949
074 Y001500 0
075 A001500 0
075 B001500 148973
076 001500 0.00
028 A011700 1007
028 A021700 148
028 A031700 0
028 A041700 2713
<PAGE> PAGE 55
028 B011700 755
028 B021700 147
028 B031700 0
028 B041700 1046
028 C011700 245
028 C021700 146
028 C031700 0
028 C041700 1741
028 D011700 549
028 D021700 142
028 D031700 0
028 D041700 1735
028 E011700 880
028 E021700 143
028 E031700 0
028 E041700 971
028 F011700 673
028 F021700 144
028 F031700 0
028 F041700 908
028 G011700 4109
028 G021700 870
028 G031700 0
028 G041700 9114
028 H001700 2618
029 001700 Y
030 A001700 26
030 B001700 4.75
030 C001700 0.00
031 A001700 4
031 B001700 0
032 001700 22
033 001700 0
034 001700 Y
035 001700 16
036 A001700 N
036 B001700 0
042 A001700 0
042 B001700 0
042 C001700 93
042 D001700 7
042 E001700 0
042 F001700 0
042 G001700 0
042 H001700 0
043 001700 58
044 001700 0
045 001700 Y
046 001700 N
047 001700 Y
048 001700 0.550
<PAGE> PAGE 56
048 A011700 0
048 A021700 0.000
048 B011700 0
048 B021700 0.000
048 C011700 0
048 C021700 0.000
048 D011700 0
048 D021700 0.000
048 E011700 0
048 E021700 0.000
048 F011700 0
048 F021700 0.000
048 G011700 0
048 G021700 0.000
048 H011700 0
048 H021700 0.000
048 I011700 0
048 I021700 0.000
048 J011700 0
048 J021700 0.000
048 K011700 0
048 K021700 0.000
049 001700 N
050 001700 N
051 001700 N
052 001700 N
053 A001700 Y
053 B001700 N
053 C001700 Y
055 A001700 N
055 B001700 N
056 001700 Y
057 001700 N
058 A001700 N
059 001700 Y
060 A001700 N
060 B001700 N
061 001700 1000
062 A001700 Y
062 B001700 0.0
062 C001700 0.0
062 D001700 0.0
062 E001700 1.9
062 F001700 0.0
062 G001700 0.0
062 H001700 0.0
062 I001700 0.0
062 J001700 0.0
062 K001700 0.0
062 L001700 0.0
062 M001700 0.0
<PAGE> PAGE 57
062 N001700 0.0
062 O001700 96.7
062 P001700 0.0
062 Q001700 0.0
062 R001700 0.0
063 A001700 0
063 B001700 16.6
064 A001700 Y
064 B001700 N
070 A011700 Y
070 A021700 N
070 B011700 N
070 B021700 N
070 C011700 Y
070 C021700 N
070 D011700 N
070 D021700 N
070 E011700 Y
070 E021700 N
070 F011700 N
070 F021700 N
070 G011700 Y
070 G021700 N
070 H011700 N
070 H021700 N
070 I011700 N
070 I021700 N
070 J011700 Y
070 J021700 N
070 K011700 N
070 K021700 N
070 L011700 N
070 L021700 N
070 M011700 N
070 M021700 N
070 N011700 N
070 N021700 N
070 O011700 Y
070 O021700 N
070 P011700 Y
070 P021700 N
070 Q011700 N
070 Q021700 N
070 R011700 N
070 R021700 N
071 A001700 7987
071 B001700 11421
071 C001700 91516
071 D001700 9
072 A001700 6
072 B001700 2774
<PAGE> PAGE 58
072 C001700 0
072 D001700 0
072 E001700 0
072 F001700 258
072 G001700 7
072 H001700 0
072 I001700 61
072 J001700 20
072 K001700 4
072 L001700 5
072 M001700 8
072 N001700 0
072 O001700 0
072 P001700 0
072 Q001700 0
072 R001700 14
072 S001700 2
072 T001700 58
072 U001700 0
072 V001700 0
072 W001700 29
072 X001700 466
072 Y001700 21
072 Z001700 2329
072AA001700 0
072BB001700 721
072CC011700 4180
072CC021700 0
072DD011700 2026
072DD021700 325
072EE001700 23
073 A011700 0.2500
073 A021700 0.2100
073 B001700 0.0000
073 C001700 0.0000
074 A001700 22
074 B001700 0
074 C001700 1800
074 D001700 91209
074 E001700 0
074 F001700 0
074 G001700 0
074 H001700 0
074 I001700 0
074 J001700 0
074 K001700 0
074 L001700 1683
074 M001700 13
074 N001700 94727
074 O001700 0
074 P001700 8
<PAGE> PAGE 59
074 Q001700 0
074 R011700 0
074 R021700 0
074 R031700 0
074 R041700 380
074 S001700 0
074 T001700 94339
074 U011700 7863
074 U021700 1575
074 V011700 10.00
074 V021700 9.99
074 W001700 0.0000
074 X001700 1623
074 Y001700 0
075 A001700 0
075 B001700 94243
076 001700 0.00
028 A011800 346
028 A021800 135
028 A031800 0
028 A041800 1143
028 B011800 543
028 B021800 136
028 B031800 0
028 B041800 865
028 C011800 321
028 C021800 134
028 C031800 0
028 C041800 1919
028 D011800 330
028 D021800 135
028 D031800 0
028 D041800 1049
028 E011800 166
028 E021800 134
028 E031800 0
028 E041800 885
028 F011800 203
028 F021800 134
028 F031800 0
028 F041800 1023
028 G011800 1910
028 G021800 808
028 G031800 0
028 G041800 6884
028 H001800 1296
029 001800 Y
030 A001800 48
030 B001800 4.75
030 C001800 0.00
031 A001800 8
<PAGE> PAGE 60
031 B001800 0
032 001800 40
033 001800 0
034 001800 Y
035 001800 35
036 A001800 N
036 B001800 0
042 A001800 0
042 B001800 0
042 C001800 11
042 D001800 89
042 E001800 0
042 F001800 0
042 G001800 0
042 H001800 0
043 001800 43
044 001800 0
045 001800 Y
046 001800 N
047 001800 Y
048 001800 0.550
048 A011800 0
048 A021800 0.000
048 B011800 0
048 B021800 0.000
048 C011800 0
048 C021800 0.000
048 D011800 0
048 D021800 0.000
048 E011800 0
048 E021800 0.000
048 F011800 0
048 F021800 0.000
048 G011800 0
048 G021800 0.000
048 H011800 0
048 H021800 0.000
048 I011800 0
048 I021800 0.000
048 J011800 0
048 J021800 0.000
048 K011800 0
048 K021800 0.000
049 001800 N
050 001800 N
051 001800 N
052 001800 N
053 A001800 Y
053 B001800 N
053 C001800 Y
055 A001800 N
<PAGE> PAGE 61
055 B001800 N
056 001800 Y
057 001800 N
058 A001800 N
059 001800 Y
060 A001800 N
060 B001800 N
061 001800 1000
062 A001800 Y
062 B001800 0.0
062 C001800 0.0
062 D001800 0.0
062 E001800 0.5
062 F001800 0.0
062 G001800 0.0
062 H001800 0.0
062 I001800 0.0
062 J001800 0.0
062 K001800 0.0
062 L001800 0.9
062 M001800 0.0
062 N001800 0.0
062 O001800 98.6
062 P001800 0.0
062 Q001800 0.0
062 R001800 0.0
063 A001800 0
063 B001800 19.3
064 A001800 Y
064 B001800 N
070 A011800 Y
070 A021800 N
070 B011800 N
070 B021800 N
070 C011800 Y
070 C021800 N
070 D011800 N
070 D021800 N
070 E011800 Y
070 E021800 Y
070 F011800 N
070 F021800 N
070 G011800 Y
070 G021800 N
070 H011800 N
070 H021800 N
070 I011800 N
070 I021800 N
070 J011800 Y
070 J021800 N
070 K011800 N
<PAGE> PAGE 62
070 K021800 N
070 L011800 N
070 L021800 N
070 M011800 N
070 M021800 N
070 N011800 N
070 N021800 N
070 O011800 Y
070 O021800 N
070 P011800 Y
070 P021800 N
070 Q011800 N
070 Q021800 N
070 R011800 N
070 R021800 N
071 A001800 5170
071 B001800 7464
071 C001800 75589
071 D001800 7
072 A001800 6
072 B001800 2282
072 C001800 0
072 D001800 0
072 E001800 0
072 F001800 212
072 G001800 6
072 H001800 0
072 I001800 50
072 J001800 16
072 K001800 2
072 L001800 4
072 M001800 9
072 N001800 0
072 O001800 0
072 P001800 0
072 Q001800 0
072 R001800 14
072 S001800 2
072 T001800 42
072 U001800 1
072 V001800 0
072 W001800 32
072 X001800 390
072 Y001800 16
072 Z001800 1908
072AA001800 559
072BB001800 0
072CC011800 2587
072CC021800 0
072DD011800 1657
072DD021800 229
<PAGE> PAGE 63
072EE001800 0
073 A011800 0.2400
073 A021800 0.2000
073 B001800 0.0000
073 C001800 0.0000
074 A001800 68
074 B001800 0
074 C001800 400
074 D001800 75566
074 E001800 0
074 F001800 0
074 G001800 0
074 H001800 0
074 I001800 0
074 J001800 0
074 K001800 0
074 L001800 1407
074 M001800 20
074 N001800 77460
074 O001800 0
074 P001800 5
074 Q001800 0
074 R011800 0
074 R021800 0
074 R031800 0
074 R041800 829
074 S001800 0
074 T001800 76626
074 U011800 6757
074 U021800 1109
074 V011800 9.74
074 V021800 9.75
074 W001800 0.0000
074 X001800 1876
074 Y001800 0
075 A001800 0
075 B001800 77364
076 001800 0.00
028 A012100 530
028 A022100 93
028 A032100 0
028 A042100 2729
028 B012100 266
028 B022100 90
028 B032100 0
028 B042100 300
028 C012100 474
028 C022100 88
028 C032100 0
028 C042100 803
028 D012100 433
<PAGE> PAGE 64
028 D022100 87
028 D032100 0
028 D042100 872
028 E012100 649
028 E022100 84
028 E032100 0
028 E042100 2030
028 F012100 517
028 F022100 83
028 F032100 0
028 F042100 1350
028 G012100 2869
028 G022100 525
028 G032100 0
028 G042100 8083
028 H002100 1108
029 002100 Y
030 A002100 27
030 B002100 4.75
030 C002100 0.00
031 A002100 5
031 B002100 0
032 002100 22
033 002100 0
034 002100 Y
035 002100 11
036 A002100 N
036 B002100 0
042 A002100 0
042 B002100 0
042 C002100 95
042 D002100 5
042 E002100 0
042 F002100 0
042 G002100 0
042 H002100 0
043 002100 90
044 002100 0
045 002100 Y
046 002100 N
047 002100 Y
048 002100 0.550
048 A012100 0
048 A022100 0.000
048 B012100 0
048 B022100 0.000
048 C012100 0
048 C022100 0.000
048 D012100 0
048 D022100 0.000
048 E012100 0
<PAGE> PAGE 65
048 E022100 0.000
048 F012100 0
048 F022100 0.000
048 G012100 0
048 G022100 0.000
048 H012100 0
048 H022100 0.000
048 I012100 0
048 I022100 0.000
048 J012100 0
048 J022100 0.000
048 K012100 0
048 K022100 0.000
049 002100 N
050 002100 N
051 002100 N
052 002100 N
053 A002100 Y
053 B002100 Y
053 C002100 Y
055 A002100 N
055 B002100 N
056 002100 Y
057 002100 N
058 A002100 N
059 002100 Y
060 A002100 N
060 B002100 N
061 002100 1000
062 A002100 Y
062 B002100 0.0
062 C002100 0.0
062 D002100 0.0
062 E002100 2.3
062 F002100 0.0
062 G002100 0.0
062 H002100 0.0
062 I002100 0.0
062 J002100 0.0
062 K002100 0.0
062 L002100 0.0
062 M002100 0.0
062 N002100 0.0
062 O002100 97.9
062 P002100 0.0
062 Q002100 0.0
062 R002100 0.0
063 A002100 0
063 B002100 16.3
064 A002100 Y
064 B002100 N
<PAGE> PAGE 66
070 A012100 Y
070 A022100 N
070 B012100 N
070 B022100 N
070 C012100 Y
070 C022100 N
070 D012100 N
070 D022100 N
070 E012100 Y
070 E022100 N
070 F012100 N
070 F022100 N
070 G012100 Y
070 G022100 N
070 H012100 N
070 H022100 N
070 I012100 N
070 I022100 N
070 J012100 Y
070 J022100 N
070 K012100 N
070 K022100 N
070 L012100 N
070 L022100 N
070 M012100 N
070 M022100 N
070 N012100 N
070 N022100 N
070 O012100 Y
070 O022100 N
070 P012100 Y
070 P022100 N
070 Q012100 N
070 Q022100 N
070 R012100 N
070 R022100 N
071 A002100 6534
071 B002100 9485
071 C002100 38833
071 D002100 17
072 A002100 6
072 B002100 1127
072 C002100 0
072 D002100 0
072 E002100 0
072 F002100 111
072 G002100 3
072 H002100 0
072 I002100 26
072 J002100 9
072 K002100 2
<PAGE> PAGE 67
072 L002100 4
072 M002100 9
072 N002100 0
072 O002100 0
072 P002100 0
072 Q002100 0
072 R002100 13
072 S002100 2
072 T002100 90
072 U002100 1
072 V002100 0
072 W002100 21
072 X002100 291
072 Y002100 140
072 Z002100 976
072AA002100 196
072BB002100 0
072CC012100 1506
072CC022100 0
072DD012100 460
072DD022100 515
072EE002100 0
073 A012100 0.2500
073 A022100 0.2100
073 B002100 0.0000
073 C002100 0.0000
074 A002100 28
074 B002100 0
074 C002100 900
074 D002100 38037
074 E002100 0
074 F002100 0
074 G002100 0
074 H002100 0
074 I002100 0
074 J002100 933
074 K002100 0
074 L002100 673
074 M002100 1
074 N002100 40572
074 O002100 1554
074 P002100 5
074 Q002100 0
074 R012100 0
074 R022100 0
074 R032100 0
074 R042100 168
074 S002100 0
074 T002100 38845
074 U012100 1793
074 U022100 2221
<PAGE> PAGE 68
074 V012100 9.66
074 V022100 9.69
074 W002100 0.0000
074 X002100 1387
074 Y002100 0
075 A002100 0
075 B002100 40238
076 002100 0.00
028 A012200 3421
028 A022200 489
028 A032200 0
028 A042200 8240
028 B012200 5019
028 B022200 476
028 B032200 0
028 B042200 4427
028 C012200 1882
028 C022200 475
028 C032200 0
028 C042200 6560
028 D012200 3121
028 D022200 471
028 D032200 0
028 D042200 6959
028 E012200 2543
028 E022200 467
028 E032200 0
028 E042200 5265
028 F012200 2976
028 F022200 462
028 F032200 0
028 F042200 4176
028 G012200 18962
028 G022200 2840
028 G032200 0
028 G042200 35627
028 H002200 13357
029 002200 Y
030 A002200 186
030 B002200 4.75
030 C002200 0.00
031 A002200 20
031 B002200 0
032 002200 166
033 002200 0
034 002200 Y
035 002200 62
036 A002200 N
036 B002200 0
042 A002200 0
042 B002200 0
<PAGE> PAGE 69
042 C002200 82
042 D002200 18
042 E002200 0
042 F002200 0
042 G002200 0
042 H002200 0
043 002200 178
044 002200 0
045 002200 Y
046 002200 N
047 002200 Y
048 002200 0.550
048 A012200 0
048 A022200 0.000
048 B012200 0
048 B022200 0.000
048 C012200 0
048 C022200 0.000
048 D012200 0
048 D022200 0.000
048 E012200 0
048 E022200 0.000
048 F012200 0
048 F022200 0.000
048 G012200 0
048 G022200 0.000
048 H012200 0
048 H022200 0.000
048 I012200 0
048 I022200 0.000
048 J012200 0
048 J022200 0.000
048 K012200 0
048 K022200 0.000
049 002200 N
050 002200 N
051 002200 N
052 002200 N
053 A002200 Y
053 B002200 Y
053 C002200 Y
055 A002200 N
055 B002200 N
056 002200 Y
057 002200 N
058 A002200 N
059 002200 Y
060 A002200 N
060 B002200 N
061 002200 1000
062 A002200 Y
<PAGE> PAGE 70
062 B002200 0.0
062 C002200 0.0
062 D002200 0.0
062 E002200 2.3
062 F002200 0.0
062 G002200 0.0
062 H002200 0.0
062 I002200 0.0
062 J002200 0.0
062 K002200 0.0
062 L002200 0.0
062 M002200 0.0
062 N002200 0.0
062 O002200 96.5
062 P002200 0.0
062 Q002200 0.1
062 R002200 0.0
063 A002200 0
063 B002200 15.1
064 A002200 Y
064 B002200 N
070 A012200 Y
070 A022200 N
070 B012200 N
070 B022200 N
070 C012200 Y
070 C022200 N
070 D012200 N
070 D022200 N
070 E012200 Y
070 E022200 Y
070 F012200 N
070 F022200 N
070 G012200 Y
070 G022200 N
070 H012200 N
070 H022200 N
070 I012200 N
070 I022200 N
070 J012200 Y
070 J022200 N
070 K012200 N
070 K022200 N
070 L012200 N
070 L022200 N
070 M012200 N
070 M022200 N
070 N012200 N
070 N022200 N
070 O012200 Y
070 O022200 N
<PAGE> PAGE 71
070 P012200 Y
070 P022200 N
070 Q012200 N
070 Q022200 N
070 R012200 N
070 R022200 N
071 A002200 78381
071 B002200 86413
071 C002200 259915
071 D002200 30
072 A002200 6
072 B002200 7910
072 C002200 0
072 D002200 0
072 E002200 0
072 F002200 545
072 G002200 20
072 H002200 0
072 I002200 177
072 J002200 48
072 K002200 9
072 L002200 11
072 M002200 19
072 N002200 0
072 O002200 0
072 P002200 0
072 Q002200 0
072 R002200 16
072 S002200 4
072 T002200 178
072 U002200 0
072 V002200 0
072 W002200 266
072 X002200 1293
072 Y002200 221
072 Z002200 6838
072AA002200 1146
072BB002200 0
072CC012200 11283
072CC022200 0
072DD012200 5924
072DD022200 832
072EE002200 0
073 A012200 0.1400
073 A022200 0.1200
073 B002200 0.0000
073 C002200 0.0000
074 A002200 30
074 B002200 0
074 C002200 6365
074 D002200 262161
<PAGE> PAGE 72
074 E002200 0
074 F002200 0
074 G002200 0
074 H002200 0
074 I002200 0
074 J002200 25
074 K002200 0
074 L002200 4417
074 M002200 3
074 N002200 273001
074 O002200 0
074 P002200 27
074 Q002200 0
074 R012200 0
074 R022200 0
074 R032200 0
074 R042200 1205
074 S002200 0
074 T002200 271769
074 U012200 39766
074 U022200 6974
074 V012200 5.73
074 V022200 5.73
074 W002200 0.0000
074 X002200 4524
074 Y002200 0
075 A002200 0
075 B002200 272595
076 002200 0.00
025 D002301 0
025 D002302 0
025 D002303 0
025 D002304 0
025 D002305 0
025 D002306 0
025 D002307 0
025 D002308 0
028 A012300 11275
028 A022300 914
028 A032300 0
028 A042300 18438
028 B012300 16150
028 B022300 1084
028 B032300 0
028 B042300 17870
028 C012300 10713
028 C022300 871
028 C032300 0
028 C042300 19760
028 D012300 7267
028 D022300 864
<PAGE> PAGE 73
028 D032300 0
028 D042300 11389
028 E012300 9811
028 E022300 858
028 E032300 0
028 E042300 13972
028 F012300 12034
028 F022300 857
028 F032300 0
028 F042300 16212
028 G012300 67250
028 G022300 5448
028 G032300 0
028 G042300 97641
028 H002300 53491
029 002300 Y
030 A002300 47
030 B002300 4.75
030 C002300 0.00
031 A002300 8
031 B002300 0
032 002300 39
033 002300 0
034 002300 Y
035 002300 135
036 A002300 N
036 B002300 0
042 A002300 0
042 B002300 0
042 C002300 59
042 D002300 41
042 E002300 0
042 F002300 0
042 G002300 0
042 H002300 0
043 002300 1354
044 002300 0
045 002300 Y
046 002300 N
047 002300 N
048 002300 0.000
048 A012300 0
048 A022300 0.000
048 B012300 0
048 B022300 0.000
048 C012300 0
048 C022300 0.000
048 D012300 0
048 D022300 0.000
048 E012300 0
048 E022300 0.000
<PAGE> PAGE 74
048 F012300 0
048 F022300 0.000
048 G012300 0
048 G022300 0.000
048 H012300 0
048 H022300 0.000
048 I012300 0
048 I022300 0.000
048 J012300 0
048 J022300 0.000
048 K012300 0
048 K022300 0.000
049 002300 N
050 002300 Y
051 002300 N
052 002300 N
053 A002300 Y
053 B002300 N
053 C002300 Y
055 A002300 N
055 B002300 N
056 002300 Y
057 002300 N
058 A002300 N
059 002300 Y
060 A002300 Y
060 B002300 Y
061 002300 1000
062 A002300 Y
062 B002300 0.0
062 C002300 0.0
062 D002300 0.0
062 E002300 0.4
062 F002300 0.0
062 G002300 0.0
062 H002300 0.0
062 I002300 0.0
062 J002300 0.0
062 K002300 0.0
062 L002300 0.0
062 M002300 0.0
062 N002300 0.0
062 O002300 99.7
062 P002300 0.0
062 Q002300 0.0
062 R002300 0.0
063 A002300 0
063 B002300 17.7
064 A002300 Y
064 B002300 N
070 A012300 Y
<PAGE> PAGE 75
070 A022300 N
070 B012300 N
070 B022300 N
070 C012300 Y
070 C022300 N
070 D012300 N
070 D022300 N
070 E012300 Y
070 E022300 Y
070 F012300 N
070 F022300 N
070 G012300 Y
070 G022300 N
070 H012300 N
070 H022300 N
070 I012300 N
070 I022300 N
070 J012300 Y
070 J022300 N
070 K012300 Y
070 K022300 N
070 L012300 N
070 L022300 N
070 M012300 N
070 M022300 N
070 N012300 Y
070 N022300 N
070 O012300 Y
070 O022300 N
070 P012300 Y
070 P022300 N
070 Q012300 N
070 Q022300 N
070 R012300 N
070 R022300 N
071 A002300 59072
071 B002300 79892
071 C002300 389964
071 D002300 15
072 A002300 6
072 B002300 13347
072 C002300 0
072 D002300 0
072 E002300 0
072 F002300 1423
072 G002300 30
072 H002300 0
072 I002300 255
072 J002300 66
072 K002300 23
072 L002300 19
<PAGE> PAGE 76
072 M002300 21
072 N002300 0
072 O002300 0
072 P002300 0
072 Q002300 0
072 R002300 15
072 S002300 4
072 T002300 1354
072 U002300 0
072 V002300 0
072 W002300 91
072 X002300 3301
072 Y002300 27
072 Z002300 10073
072AA002300 1815
072BB002300 0
072CC012300 15419
072CC022300 0
072DD012300 4465
072DD022300 5020
072EE002300 0
073 A012300 0.2400
073 A022300 0.2100
073 B002300 0.0000
073 C002300 0.0000
074 A002300 0
074 B002300 0
074 C002300 1500
074 D002300 388700
074 E002300 0
074 F002300 0
074 G002300 0
074 H002300 0
074 I002300 0
074 J002300 629
074 K002300 0
074 L002300 7003
074 M002300 4
074 N002300 397836
074 O002300 2309
074 P002300 49
074 Q002300 0
074 R012300 0
074 R022300 0
074 R032300 0
074 R042300 5709
074 S002300 0
074 T002300 389769
074 U012300 19213
074 U022300 22379
074 V012300 8.89
<PAGE> PAGE 77
074 V022300 8.90
074 W002300 0.0000
074 X002300 11514
074 Y002300 0
075 A002300 0
075 B002300 392632
076 002300 0.00
074 A003500 0
074 B003500 0
074 C003500 0
074 D003500 0
074 E003500 0
074 F003500 0
074 G003500 0
074 H003500 0
074 I003500 0
074 J003500 0
074 K003500 0
074 L003500 0
074 M003500 0
074 N003500 0
SIGNATURE ELLEN M. MOYNIHAN
TITLE ASSISTANT TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 141
<NAME> MFS ALABAMA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 76674913
<INVESTMENTS-AT-VALUE> 82884326
<RECEIVABLES> 2656932
<ASSETS-OTHER> 752
<OTHER-ITEMS-ASSETS> 70195
<TOTAL-ASSETS> 85612205
<PAYABLE-FOR-SECURITIES> 967430
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 393139
<TOTAL-LIABILITIES> 1360569
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76990980
<SHARES-COMMON-STOCK> 7125706
<SHARES-COMMON-PRIOR> 7339789
<ACCUMULATED-NII-CURRENT> 157930
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 893313
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 6209413
<NET-ASSETS> 84251636
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2640268
<OTHER-INCOME> 0
<EXPENSES-NET> (486890)
<NET-INVESTMENT-INCOME> 2153378
<REALIZED-GAINS-CURRENT> 481702
<APPREC-INCREASE-CURRENT> 2300762
<NET-CHANGE-FROM-OPS> 4935842
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2011508)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 108956
<NUMBER-OF-SHARES-REDEEMED> (395547)
<SHARES-REINVESTED> 72508
<NET-CHANGE-IN-ASSETS> 42448
<ACCUMULATED-NII-PRIOR> 179772
<ACCUMULATED-GAINS-PRIOR> 411611
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 232566
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 505646
<AVERAGE-NET-ASSETS> 84815473
<PER-SHARE-NAV-BEGIN> 10.48
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0.35
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.83
<EXPENSE-RATIO> 1.09
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 142
<NAME> MFS ALABAMA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 76674913
<INVESTMENTS-AT-VALUE> 82884326
<RECEIVABLES> 2656932
<ASSETS-OTHER> 752
<OTHER-ITEMS-ASSETS> 70195
<TOTAL-ASSETS> 85612205
<PAYABLE-FOR-SECURITIES> 967430
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 393139
<TOTAL-LIABILITIES> 1360569
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76990980
<SHARES-COMMON-STOCK> 654895
<SHARES-COMMON-PRIOR> 694527
<ACCUMULATED-NII-CURRENT> 157930
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 893313
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 6209413
<NET-ASSETS> 84251636
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2640268
<OTHER-INCOME> 0
<EXPENSES-NET> (486890)
<NET-INVESTMENT-INCOME> 2153378
<REALIZED-GAINS-CURRENT> 481702
<APPREC-INCREASE-CURRENT> 2300762
<NET-CHANGE-FROM-OPS> 4935842
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (163712)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 34093
<NUMBER-OF-SHARES-REDEEMED> (80177)
<SHARES-REINVESTED> 6452
<NET-CHANGE-IN-ASSETS> 42448
<ACCUMULATED-NII-PRIOR> 179772
<ACCUMULATED-GAINS-PRIOR> 411611
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 232566
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 505646
<AVERAGE-NET-ASSETS> 84815473
<PER-SHARE-NAV-BEGIN> 10.48
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> 0.71
<PER-SHARE-DIVIDEND> (0.59)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.83
<EXPENSE-RATIO> 1.84
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 151
<NAME> MFS ARKANSAS MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 134722118
<INVESTMENTS-AT-VALUE> 145044159
<RECEIVABLES> 2194244
<ASSETS-OTHER> 1402
<OTHER-ITEMS-ASSETS> 99136
<TOTAL-ASSETS> 147338941
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 804987
<TOTAL-LIABILITIES> 804987
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 144240467
<SHARES-COMMON-STOCK> 13796368
<SHARES-COMMON-PRIOR> 14835381
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (179177)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7849377)
<ACCUM-APPREC-OR-DEPREC> 10322041
<NET-ASSETS> 146533954
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4381981
<OTHER-INCOME> 0
<EXPENSES-NET> (691322)
<NET-INVESTMENT-INCOME> 3690659
<REALIZED-GAINS-CURRENT> (55785)
<APPREC-INCREASE-CURRENT> 5284291
<NET-CHANGE-FROM-OPS> 8919165
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3567166)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 327020
<NUMBER-OF-SHARES-REDEEMED> (1528241)
<SHARES-REINVESTED> 162208
<NET-CHANGE-IN-ASSETS> (5276802)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (139974)
<OVERDIST-NET-GAINS-PRIOR> (7793592)
<GROSS-ADVISORY-FEES> 408258
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 722082
<AVERAGE-NET-ASSETS> 148972959
<PER-SHARE-NAV-BEGIN> 9.72
<PER-SHARE-NII> 0.25
<PER-SHARE-GAIN-APPREC> 0.35
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.07
<EXPENSE-RATIO> .90
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 152
<NAME> MFS ARKANSAS MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 134722118
<INVESTMENTS-AT-VALUE> 145044159
<RECEIVABLES> 2194244
<ASSETS-OTHER> 1402
<OTHER-ITEMS-ASSETS> 99136
<TOTAL-ASSETS> 147338941
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 804987
<TOTAL-LIABILITIES> 804987
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 144240467
<SHARES-COMMON-STOCK> 757208
<SHARES-COMMON-PRIOR> 776303
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (179177)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7849377)
<ACCUM-APPREC-OR-DEPREC> 10322041
<NET-ASSETS> 146533954
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4381981
<OTHER-INCOME> 0
<EXPENSES-NET> (691322)
<NET-INVESTMENT-INCOME> 3690659
<REALIZED-GAINS-CURRENT> (55785)
<APPREC-INCREASE-CURRENT> 5284291
<NET-CHANGE-FROM-OPS> 8919165
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (162696)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 39882
<NUMBER-OF-SHARES-REDEEMED> (66649)
<SHARES-REINVESTED> 7672
<NET-CHANGE-IN-ASSETS> (5276802)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (139974)
<OVERDIST-NET-GAINS-PRIOR> (7793592)
<GROSS-ADVISORY-FEES> 408258
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 722082
<AVERAGE-NET-ASSETS> 148972959
<PER-SHARE-NAV-BEGIN> 9.72
<PER-SHARE-NII> 0.21
<PER-SHARE-GAIN-APPREC> 0.35
<PER-SHARE-DIVIDEND> (0.21)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.07
<EXPENSE-RATIO> 1.65
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 221
<NAME> MFS CALIFORNIA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 246412313
<INVESTMENTS-AT-VALUE> 268525668
<RECEIVABLES> 4442406
<ASSETS-OTHER> 30314
<OTHER-ITEMS-ASSETS> 2539
<TOTAL-ASSETS> 273000927
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1232358
<TOTAL-LIABILITIES> 1232358
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 260394595
<SHARES-COMMON-STOCK> 39765890
<SHARES-COMMON-PRIOR> 42498099
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (376776)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10362605)
<ACCUM-APPREC-OR-DEPREC> 22113355
<NET-ASSETS> 271768569
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7909663
<OTHER-INCOME> 0
<EXPENSES-NET> (1071977)
<NET-INVESTMENT-INCOME> 6837686
<REALIZED-GAINS-CURRENT> 1146493
<APPREC-INCREASE-CURRENT> 11283260
<NET-CHANGE-FROM-OPS> 19267439
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5923558)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2389568
<NUMBER-OF-SHARES-REDEEMED> (5548175)
<SHARES-REINVESTED> 426398
<NET-CHANGE-IN-ASSETS> (1393105)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (378009)
<OVERDIST-NET-GAINS-PRIOR> (11509098)
<GROSS-ADVISORY-FEES> 545107
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1293359
<AVERAGE-NET-ASSETS> 272594667
<PER-SHARE-NAV-BEGIN> 5.47
<PER-SHARE-NII> 0.14
<PER-SHARE-GAIN-APPREC> 0.26
<PER-SHARE-DIVIDEND> (0.14)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.73
<EXPENSE-RATIO> 0.65
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 222
<NAME> MFS CALIFORNIA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 246412313
<INVESTMENTS-AT-VALUE> 268525668
<RECEIVABLES> 4442406
<ASSETS-OTHER> 30314
<OTHER-ITEMS-ASSETS> 2539
<TOTAL-ASSETS> 273000927
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1232358
<TOTAL-LIABILITIES> 1232358
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 260394595
<SHARES-COMMON-STOCK> 6974327
<SHARES-COMMON-PRIOR> 6703433
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (376776)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10362605)
<ACCUM-APPREC-OR-DEPREC> 22113355
<NET-ASSETS> 271768569
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7909663
<OTHER-INCOME> 0
<EXPENSES-NET> (1071977)
<NET-INVESTMENT-INCOME> 6837686
<REALIZED-GAINS-CURRENT> 1146493
<APPREC-INCREASE-CURRENT> 11283260
<NET-CHANGE-FROM-OPS> 19267439
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (832477)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 798488
<NUMBER-OF-SHARES-REDEEMED> (597024)
<SHARES-REINVESTED> 69430
<NET-CHANGE-IN-ASSETS> (1393105)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (378009)
<OVERDIST-NET-GAINS-PRIOR> (11509098)
<GROSS-ADVISORY-FEES> 545107
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1293359
<AVERAGE-NET-ASSETS> 272594667
<PER-SHARE-NAV-BEGIN> 5.47
<PER-SHARE-NII> 0.12
<PER-SHARE-GAIN-APPREC> 0.26
<PER-SHARE-DIVIDEND> (0.12)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.73
<EXPENSE-RATIO> 1.47
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 223
<NAME> MFS CALIFORNIA MUNICIPAL BOND FUND CLASS C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 246412313
<INVESTMENTS-AT-VALUE> 268525668
<RECEIVABLES> 4442406
<ASSETS-OTHER> 30314
<OTHER-ITEMS-ASSETS> 2539
<TOTAL-ASSETS> 273000927
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1232358
<TOTAL-LIABILITIES> 1232358
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 260394595
<SHARES-COMMON-STOCK> 699781
<SHARES-COMMON-PRIOR> 703318
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (376776)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10362605)
<ACCUM-APPREC-OR-DEPREC> 22113355
<NET-ASSETS> 271768569
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7909663
<OTHER-INCOME> 0
<EXPENSES-NET> (1071977)
<NET-INVESTMENT-INCOME> 6837686
<REALIZED-GAINS-CURRENT> 1146493
<APPREC-INCREASE-CURRENT> 11283260
<NET-CHANGE-FROM-OPS> 19267439
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (80417)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 198488
<NUMBER-OF-SHARES-REDEEMED> (210058)
<SHARES-REINVESTED> 8033
<NET-CHANGE-IN-ASSETS> (1393105)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (378009)
<OVERDIST-NET-GAINS-PRIOR> (11509098)
<GROSS-ADVISORY-FEES> 545107
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1293359
<AVERAGE-NET-ASSETS> 272594667
<PER-SHARE-NAV-BEGIN> 5.48
<PER-SHARE-NII> 0.12
<PER-SHARE-GAIN-APPREC> 0.26
<PER-SHARE-DIVIDEND> (0.12)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.74
<EXPENSE-RATIO> 1.65
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 171
<NAME> MFS FLORIDA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 85195550
<INVESTMENTS-AT-VALUE> 93009341
<RECEIVABLES> 1683076
<ASSETS-OTHER> 13195
<OTHER-ITEMS-ASSETS> 21692
<TOTAL-ASSETS> 94727304
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 388140
<TOTAL-LIABILITIES> 388140
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 94566830
<SHARES-COMMON-STOCK> 7862636
<SHARES-COMMON-PRIOR> 8335775
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (3024)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8038433)
<ACCUM-APPREC-OR-DEPREC> 7813791
<NET-ASSETS> 94339164
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2774228
<OTHER-INCOME> 0
<EXPENSES-NET> (445695)
<NET-INVESTMENT-INCOME> 2328533
<REALIZED-GAINS-CURRENT> (721169)
<APPREC-INCREASE-CURRENT> 4180189
<NET-CHANGE-FROM-OPS> 5787553
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2028944)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 269686
<NUMBER-OF-SHARES-REDEEMED> (819902)
<SHARES-REINVESTED> 77076
<NET-CHANGE-IN-ASSETS> (703417)
<ACCUMULATED-NII-PRIOR> 22856
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (7317264)
<GROSS-ADVISORY-FEES> 258334
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 466341
<AVERAGE-NET-ASSETS> 94243113
<PER-SHARE-NAV-BEGIN> 9.64
<PER-SHARE-NII> 0.25
<PER-SHARE-GAIN-APPREC> 0.36
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.00
<EXPENSE-RATIO> .83
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 172
<NAME> MFS FLORIDA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 85195550
<INVESTMENTS-AT-VALUE> 93009341
<RECEIVABLES> 1683076
<ASSETS-OTHER> 13195
<OTHER-ITEMS-ASSETS> 21692
<TOTAL-ASSETS> 94727304
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 388140
<TOTAL-LIABILITIES> 388140
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 94566830
<SHARES-COMMON-STOCK> 1575128
<SHARES-COMMON-PRIOR> 1525437
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (3024)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8038433)
<ACCUM-APPREC-OR-DEPREC> 7813791
<NET-ASSETS> 94339164
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2774228
<OTHER-INCOME> 0
<EXPENSES-NET> (445695)
<NET-INVESTMENT-INCOME> 2328533
<REALIZED-GAINS-CURRENT> (721169)
<APPREC-INCREASE-CURRENT> 4180189
<NET-CHANGE-FROM-OPS> 5787553
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (325469)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 150633
<NUMBER-OF-SHARES-REDEEMED> (112043)
<SHARES-REINVESTED> 11101
<NET-CHANGE-IN-ASSETS> (703417)
<ACCUMULATED-NII-PRIOR> 22856
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (7317264)
<GROSS-ADVISORY-FEES> 258334
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 466341
<AVERAGE-NET-ASSETS> 94243113
<PER-SHARE-NAV-BEGIN> 9.64
<PER-SHARE-NII> 0.21
<PER-SHARE-GAIN-APPREC> 0.35
<PER-SHARE-DIVIDEND> (0.21)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.99
<EXPENSE-RATIO> 1.60
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 071
<NAME> MFS GEORGIA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 63192065
<INVESTMENTS-AT-VALUE> 70236733
<RECEIVABLES> 1345933
<ASSETS-OTHER> 74618
<OTHER-ITEMS-ASSETS> 638
<TOTAL-ASSETS> 71657922
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 285998
<TOTAL-LIABILITIES> 285998
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 67801007
<SHARES-COMMON-STOCK> 5586003
<SHARES-COMMON-PRIOR> 5765143
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (44168)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3429583)
<ACCUM-APPREC-OR-DEPREC> 7044668
<NET-ASSETS> 71371924
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2201988
<OTHER-INCOME> 0
<EXPENSES-NET> (400537)
<NET-INVESTMENT-INCOME> 1801451
<REALIZED-GAINS-CURRENT> (536)
<APPREC-INCREASE-CURRENT> 3150924
<NET-CHANGE-FROM-OPS> 4951839
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1571423)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (2373)
<NUMBER-OF-SHARES-SOLD> 146665
<NUMBER-OF-SHARES-REDEEMED> (403638)
<SHARES-REINVESTED> 77833
<NET-CHANGE-IN-ASSETS> 1534300
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (41448)
<OVERDIST-NET-GAINS-PRIOR> (3429047)
<GROSS-ADVISORY-FEES> 194400
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 445113
<AVERAGE-NET-ASSETS> 70610068
<PER-SHARE-NAV-BEGIN> 10.38
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0.48
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.86
<EXPENSE-RATIO> 1.05
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 072
<NAME> MFS GEORGIA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 63192065
<INVESTMENTS-AT-VALUE> 70236733
<RECEIVABLES> 1345933
<ASSETS-OTHER> 74618
<OTHER-ITEMS-ASSETS> 638
<TOTAL-ASSETS> 71657922
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 285998
<TOTAL-LIABILITIES> 285998
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 67801007
<SHARES-COMMON-STOCK> 987991
<SHARES-COMMON-PRIOR> 962443
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (44168)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3429583)
<ACCUM-APPREC-OR-DEPREC> 7044668
<NET-ASSETS> 71371924
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2201988
<OTHER-INCOME> 0
<EXPENSES-NET> (400537)
<NET-INVESTMENT-INCOME> 1801451
<REALIZED-GAINS-CURRENT> (536)
<APPREC-INCREASE-CURRENT> 3150924
<NET-CHANGE-FROM-OPS> 4951839
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (230028)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (347)
<NUMBER-OF-SHARES-SOLD> 115451
<NUMBER-OF-SHARES-REDEEMED> (99963)
<SHARES-REINVESTED> 10060
<NET-CHANGE-IN-ASSETS> 1534300
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (41448)
<OVERDIST-NET-GAINS-PRIOR> (3429047)
<GROSS-ADVISORY-FEES> 194400
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 445113
<AVERAGE-NET-ASSETS> 70610068
<PER-SHARE-NAV-BEGIN> 10.38
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.48
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.86
<EXPENSE-RATIO> 1.80
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 061
<NAME> MFS MASSACHUSETTS MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 233173395
<INVESTMENTS-AT-VALUE> 254165127
<RECEIVABLES> 5108786
<ASSETS-OTHER> 5038
<OTHER-ITEMS-ASSETS> 2288
<TOTAL-ASSETS> 259281239
<PAYABLE-FOR-SECURITIES> 3333500
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1912783
<TOTAL-LIABILITIES> 5246283
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 238298849
<SHARES-COMMON-STOCK> 21055451
<SHARES-COMMON-PRIOR> 21628872
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (626470)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (4629155)
<ACCUM-APPREC-OR-DEPREC> 20991732
<NET-ASSETS> 254034956
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8072363
<OTHER-INCOME> 0
<EXPENSES-NET> (1386708)
<NET-INVESTMENT-INCOME> 6685655
<REALIZED-GAINS-CURRENT> 588651
<APPREC-INCREASE-CURRENT> 9173422
<NET-CHANGE-FROM-OPS> 16447728
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6314798)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (17959)
<NUMBER-OF-SHARES-SOLD> 2896197
<NUMBER-OF-SHARES-REDEEMED> (3722515)
<SHARES-REINVESTED> 252897
<NET-CHANGE-IN-ASSETS> 3957137
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (607456)
<OVERDIST-NET-GAINS-PRIOR> (5217806)
<GROSS-ADVISORY-FEES> 698616
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1530516
<AVERAGE-NET-ASSETS> 253734359
<PER-SHARE-NAV-BEGIN> 10.86
<PER-SHARE-NII> 0.29
<PER-SHARE-GAIN-APPREC> 0.43
<PER-SHARE-DIVIDEND> (0.30)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.28
<EXPENSE-RATIO> 1.05
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 062
<NAME> MFS MASSACHUSETTS MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 233173395
<INVESTMENTS-AT-VALUE> 254165127
<RECEIVABLES> 5108786
<ASSETS-OTHER> 5038
<OTHER-ITEMS-ASSETS> 2288
<TOTAL-ASSETS> 259281239
<PAYABLE-FOR-SECURITIES> 3333500
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1912783
<TOTAL-LIABILITIES> 5246283
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 238298849
<SHARES-COMMON-STOCK> 1456078
<SHARES-COMMON-PRIOR> 1399249
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (626470)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (4629155)
<ACCUM-APPREC-OR-DEPREC> 20991732
<NET-ASSETS> 254034956
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8072363
<OTHER-INCOME> 0
<EXPENSES-NET> (1386708)
<NET-INVESTMENT-INCOME> 6685655
<REALIZED-GAINS-CURRENT> 588651
<APPREC-INCREASE-CURRENT> 9173422
<NET-CHANGE-FROM-OPS> 16447728
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (370857)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (1055)
<NUMBER-OF-SHARES-SOLD> 153633
<NUMBER-OF-SHARES-REDEEMED> (116826)
<SHARES-REINVESTED> 20022
<NET-CHANGE-IN-ASSETS> 3957137
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (607456)
<OVERDIST-NET-GAINS-PRIOR> (5217806)
<GROSS-ADVISORY-FEES> 698616
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1530516
<AVERAGE-NET-ASSETS> 253734359
<PER-SHARE-NAV-BEGIN> 10.87
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> 0.42
<PER-SHARE-DIVIDEND> (0.26)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.29
<EXPENSE-RATIO> 1.70
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 011
<NAME> MFS MARYLAND MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 132892315
<INVESTMENTS-AT-VALUE> 144738389
<RECEIVABLES> 2636507
<ASSETS-OTHER> 1302
<OTHER-ITEMS-ASSETS> 5095
<TOTAL-ASSETS> 147381293
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 582226
<TOTAL-LIABILITIES> 582226
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 139872321
<SHARES-COMMON-STOCK> 11188306
<SHARES-COMMON-PRIOR> 11612305
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (123181)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (4796147)
<ACCUM-APPREC-OR-DEPREC> 11846074
<NET-ASSETS> 146799067
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4407489
<OTHER-INCOME> 0
<EXPENSES-NET> (936991)
<NET-INVESTMENT-INCOME> 3560239
<REALIZED-GAINS-CURRENT> 645405
<APPREC-INCREASE-CURRENT> 5496062
<NET-CHANGE-FROM-OPS> 9701706
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3142037)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 317251
<NUMBER-OF-SHARES-REDEEMED> (890542)
<SHARES-REINVESTED> 149292
<NET-CHANGE-IN-ASSETS> 3015505
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (137662)
<OVERDIST-NET-GAINS-PRIOR> (5441552)
<GROSS-ADVISORY-FEES> 399825
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 936991
<AVERAGE-NET-ASSETS> 145231706
<PER-SHARE-NAV-BEGIN> 10.89
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0.47
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.36
<EXPENSE-RATIO> 1.06
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 012
<NAME> MFS MARYLAND MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 132892315
<INVESTMENTS-AT-VALUE> 144738389
<RECEIVABLES> 2636507
<ASSETS-OTHER> 1302
<OTHER-ITEMS-ASSETS> 5095
<TOTAL-ASSETS> 147381293
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 582226
<TOTAL-LIABILITIES> 582226
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 139872321
<SHARES-COMMON-STOCK> 1739904
<SHARES-COMMON-PRIOR> 1597546
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (123181)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (4796147)
<ACCUM-APPREC-OR-DEPREC> 11846074
<NET-ASSETS> 146799067
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4407489
<OTHER-INCOME> 0
<EXPENSES-NET> (936991)
<NET-INVESTMENT-INCOME> 3560239
<REALIZED-GAINS-CURRENT> 645405
<APPREC-INCREASE-CURRENT> 5496062
<NET-CHANGE-FROM-OPS> 9701706
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (403721)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 276426
<NUMBER-OF-SHARES-REDEEMED> (154266)
<SHARES-REINVESTED> 20199
<NET-CHANGE-IN-ASSETS> 3015505
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (137662)
<OVERDIST-NET-GAINS-PRIOR> (5441552)
<GROSS-ADVISORY-FEES> 399825
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 936991
<AVERAGE-NET-ASSETS> 145231706
<PER-SHARE-NAV-BEGIN> 10.88
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.47
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.35
<EXPENSE-RATIO> 1.71
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 231
<NAME> MFS MUNICIPAL INCOME FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 347301564
<INVESTMENTS-AT-VALUE> 390199715
<RECEIVABLES> 7631884
<ASSETS-OTHER> 3690
<OTHER-ITEMS-ASSETS> 549
<TOTAL-ASSETS> 397835838
<PAYABLE-FOR-SECURITIES> 5797422
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2269786
<TOTAL-LIABILITIES> 8067208
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 359341986
<SHARES-COMMON-STOCK> 19213570
<SHARES-COMMON-PRIOR> 17881552
<ACCUMULATED-NII-CURRENT> 296916
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (12768423)
<ACCUM-APPREC-OR-DEPREC> 42898151
<NET-ASSETS> 389768630
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13346585
<OTHER-INCOME> 0
<EXPENSES-NET> 3273542
<NET-INVESTMENT-INCOME> 10073043
<REALIZED-GAINS-CURRENT> 1814785
<APPREC-INCREASE-CURRENT> 15419543
<NET-CHANGE-FROM-OPS> 27307371
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (4465474)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 6165121
<NUMBER-OF-SHARES-REDEEMED> (5079226)
<SHARES-REINVESTED> 246123
<NET-CHANGE-IN-ASSETS> (7567286)
<ACCUMULATED-NII-PRIOR> 153445
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (14583208)
<GROSS-ADVISORY-FEES> 1422527
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3300842
<AVERAGE-NET-ASSETS> 392632408
<PER-SHARE-NAV-BEGIN> 8.50
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.24)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 8.89
<EXPENSE-RATIO> 1.24
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 232
<NAME> MFS MUNICIPAL INCOME FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 347301564
<INVESTMENTS-AT-VALUE> 390199715
<RECEIVABLES> 7631884
<ASSETS-OTHER> 3690
<OTHER-ITEMS-ASSETS> 549
<TOTAL-ASSETS> 397835838
<PAYABLE-FOR-SECURITIES> 5797422
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2269786
<TOTAL-LIABILITIES> 8067208
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 359341986
<SHARES-COMMON-STOCK> 22378713
<SHARES-COMMON-PRIOR> 26567509
<ACCUMULATED-NII-CURRENT> 296916
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (12768423)
<ACCUM-APPREC-OR-DEPREC> 42898151
<NET-ASSETS> 389768630
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13346585
<OTHER-INCOME> 0
<EXPENSES-NET> 3273542
<NET-INVESTMENT-INCOME> 10073043
<REALIZED-GAINS-CURRENT> 1814785
<APPREC-INCREASE-CURRENT> 15419543
<NET-CHANGE-FROM-OPS> 27307371
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5020432)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 794627
<NUMBER-OF-SHARES-REDEEMED> (5305763)
<SHARES-REINVESTED> 322340
<NET-CHANGE-IN-ASSETS> (7567286)
<ACCUMULATED-NII-PRIOR> 153445
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (14583208)
<GROSS-ADVISORY-FEES> 1422527
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3300842
<AVERAGE-NET-ASSETS> 392632408
<PER-SHARE-NAV-BEGIN> 8.51
<PER-SHARE-NII> 0.21
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.21)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 8.90
<EXPENSE-RATIO> 1.99
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 233
<NAME> MFS MUNICIPAL INCOME FUND CLASS C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 347301564
<INVESTMENTS-AT-VALUE> 390199715
<RECEIVABLES> 7631884
<ASSETS-OTHER> 3690
<OTHER-ITEMS-ASSETS> 549
<TOTAL-ASSETS> 397835838
<PAYABLE-FOR-SECURITIES> 5797422
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2269786
<TOTAL-LIABILITIES> 8067208
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 359341986
<SHARES-COMMON-STOCK> 2234868
<SHARES-COMMON-PRIOR> 2249229
<ACCUMULATED-NII-CURRENT> 296916
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (12768423)
<ACCUM-APPREC-OR-DEPREC> 42898151
<NET-ASSETS> 389768630
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13346585
<OTHER-INCOME> 0
<EXPENSES-NET> 3273542
<NET-INVESTMENT-INCOME> 10073043
<REALIZED-GAINS-CURRENT> 1814785
<APPREC-INCREASE-CURRENT> 15419543
<NET-CHANGE-FROM-OPS> 27307371
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (443666)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 786471
<NUMBER-OF-SHARES-REDEEMED> (856241)
<SHARES-REINVESTED> 55409
<NET-CHANGE-IN-ASSETS> (7567286)
<ACCUMULATED-NII-PRIOR> 153445
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (14583208)
<GROSS-ADVISORY-FEES> 1422527
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3300842
<AVERAGE-NET-ASSETS> 392632408
<PER-SHARE-NAV-BEGIN> 8.52
<PER-SHARE-NII> 0.21
<PER-SHARE-GAIN-APPREC> 0.38
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.21)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 8.90
<EXPENSE-RATIO> 1.99
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 181
<NAME> MISSISSIPPI MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 70715713
<INVESTMENTS-AT-VALUE> 75966165
<RECEIVABLES> 1406745
<ASSETS-OTHER> 705
<OTHER-ITEMS-ASSETS> 67673
<TOTAL-ASSETS> 77441288
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 814855
<TOTAL-LIABILITIES> 814855
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 75100811
<SHARES-COMMON-STOCK> 6756638
<SHARES-COMMON-PRIOR> 7125487
<ACCUMULATED-NII-CURRENT> 58363
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3783193)
<ACCUM-APPREC-OR-DEPREC> 5250452
<NET-ASSETS> 76626433
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2281873
<OTHER-INCOME> 0
<EXPENSES-NET> (373791)
<NET-INVESTMENT-INCOME> 1908082
<REALIZED-GAINS-CURRENT> 558895
<APPREC-INCREASE-CURRENT> 2587464
<NET-CHANGE-FROM-OPS> 5054441
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1656745)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 135945
<NUMBER-OF-SHARES-REDEEMED> 579064
<SHARES-REINVESTED> 75943
<NET-CHANGE-IN-ASSETS> (1016893)
<ACCUMULATED-NII-PRIOR> 36215
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (4342088)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 390102
<AVERAGE-NET-ASSETS> 77364058
<PER-SHARE-NAV-BEGIN> 9.35
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.74
<EXPENSE-RATIO> 0.87
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 182
<NAME> MISSISSIPPI MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 70715713
<INVESTMENTS-AT-VALUE> 75966165
<RECEIVABLES> 1406745
<ASSETS-OTHER> 705
<OTHER-ITEMS-ASSETS> 67673
<TOTAL-ASSETS> 77441288
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 814855
<TOTAL-LIABILITIES> 814855
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 75100811
<SHARES-COMMON-STOCK> 1108790
<SHARES-COMMON-PRIOR> 1176682
<ACCUMULATED-NII-CURRENT> 58363
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3783193)
<ACCUM-APPREC-OR-DEPREC> 5250452
<NET-ASSETS> 76626433
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2281873
<OTHER-INCOME> 0
<EXPENSES-NET> (373791)
<NET-INVESTMENT-INCOME> 1908082
<REALIZED-GAINS-CURRENT> 558895
<APPREC-INCREASE-CURRENT> 2587464
<NET-CHANGE-FROM-OPS> 5054441
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (229189)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 64335
<NUMBER-OF-SHARES-REDEEMED> 140020
<SHARES-REINVESTED> 9198
<NET-CHANGE-IN-ASSETS> (1016893)
<ACCUMULATED-NII-PRIOR> 36215
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (4342088)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 390102
<AVERAGE-NET-ASSETS> 77364058
<PER-SHARE-NAV-BEGIN> 9.36
<PER-SHARE-NII> 0.20
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> (0.20)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.75
<EXPENSE-RATIO> 1.65
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 021
<NAME> NORTH CAROLINA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 392630824
<INVESTMENTS-AT-VALUE> 426381205
<RECEIVABLES> 14987154
<ASSETS-OTHER> 2878
<OTHER-ITEMS-ASSETS> 98694
<TOTAL-ASSETS> 441470931
<PAYABLE-FOR-SECURITIES> 10345692
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1598348
<TOTAL-LIABILITIES> 11944040
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 404096513
<SHARES-COMMON-STOCK> 31594564
<SHARES-COMMON-PRIOR> 32631174
<ACCUMULATED-NII-CURRENT> (678971)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7641032)
<ACCUM-APPREC-OR-DEPREC> 33750381
<NET-ASSETS> 429526891
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12966176
<OTHER-INCOME> 0
<EXPENSES-NET> (2367702)
<NET-INVESTMENT-INCOME> 10598474
<REALIZED-GAINS-CURRENT> 2357873
<APPREC-INCREASE-CURRENT> 14213280
<NET-CHANGE-FROM-OPS> 27169627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9517696)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 909171
<NUMBER-OF-SHARES-REDEEMED> 2407672
<SHARES-REINVESTED> 461687
<NET-CHANGE-IN-ASSETS> 5591551
<ACCUMULATED-NII-PRIOR> (714721)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (9998905)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2607043
<AVERAGE-NET-ASSETS> 428373654
<PER-SHARE-NAV-BEGIN> 11.56
<PER-SHARE-NII> 0.30
<PER-SHARE-GAIN-APPREC> 0.45
<PER-SHARE-DIVIDEND> (0.30)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.01
<EXPENSE-RATIO> 1.04
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 022
<NAME> NORTH CAROLINA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 392630824
<INVESTMENTS-AT-VALUE> 426381205
<RECEIVABLES> 14987154
<ASSETS-OTHER> 2878
<OTHER-ITEMS-ASSETS> 98694
<TOTAL-ASSETS> 441470931
<PAYABLE-FOR-SECURITIES> 10345692
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1598348
<TOTAL-LIABILITIES> 11944040
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 404096513
<SHARES-COMMON-STOCK> 3574593
<SHARES-COMMON-PRIOR> 3379267
<ACCUMULATED-NII-CURRENT> (678971)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7641032)
<ACCUM-APPREC-OR-DEPREC> 33750381
<NET-ASSETS> 429526891
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12966176
<OTHER-INCOME> 0
<EXPENSES-NET> (2367702)
<NET-INVESTMENT-INCOME> 10598474
<REALIZED-GAINS-CURRENT> 2357873
<APPREC-INCREASE-CURRENT> 14213280
<NET-CHANGE-FROM-OPS> 27169627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9517696)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 376027
<NUMBER-OF-SHARES-REDEEMED> 227206
<SHARES-REINVESTED> 46324
<NET-CHANGE-IN-ASSETS> 5591551
<ACCUMULATED-NII-PRIOR> (714721)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (9998905)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2607043
<AVERAGE-NET-ASSETS> 428373654
<PER-SHARE-NAV-BEGIN> 11.55
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> (0.26)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.01
<EXPENSE-RATIO> 1.69
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 023
<NAME> NORTH CAROLINA MUNICIPAL BOND FUND CLASS C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 392630824
<INVESTMENTS-AT-VALUE> 426381205
<RECEIVABLES> 14987154
<ASSETS-OTHER> 2878
<OTHER-ITEMS-ASSETS> 98694
<TOTAL-ASSETS> 441470931
<PAYABLE-FOR-SECURITIES> 10345692
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1598348
<TOTAL-LIABILITIES> 11944040
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 404096513
<SHARES-COMMON-STOCK> 587070
<SHARES-COMMON-PRIOR> 674343
<ACCUMULATED-NII-CURRENT> (678971)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7641032)
<ACCUM-APPREC-OR-DEPREC> 33750381
<NET-ASSETS> 429526891
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12966176
<OTHER-INCOME> 0
<EXPENSES-NET> (2367702)
<NET-INVESTMENT-INCOME> 10598474
<REALIZED-GAINS-CURRENT> 2357873
<APPREC-INCREASE-CURRENT> 14213280
<NET-CHANGE-FROM-OPS> 27169627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9517696)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 75663
<NUMBER-OF-SHARES-REDEEMED> 173072
<SHARES-REINVESTED> 9175
<NET-CHANGE-IN-ASSETS> 5591551
<ACCUMULATED-NII-PRIOR> (714721)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (9998905)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2607043
<AVERAGE-NET-ASSETS> 428373654
<PER-SHARE-NAV-BEGIN> 11.55
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> (0.26)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.01
<EXPENSE-RATIO> 1.69
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 111
<NAME> NEW YORK MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 133614472
<INVESTMENTS-AT-VALUE> 146715291
<RECEIVABLES> 2335355
<ASSETS-OTHER> 1357
<OTHER-ITEMS-ASSETS> 22760
<TOTAL-ASSETS> 149074763
<PAYABLE-FOR-SECURITIES> 1506875
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 825343
<TOTAL-LIABILITIES> 2332218
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 136961537
<SHARES-COMMON-STOCK> 10815063
<SHARES-COMMON-PRIOR> 11475221
<ACCUMULATED-NII-CURRENT> (135235)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3184576)
<ACCUM-APPREC-OR-DEPREC> 13100819
<NET-ASSETS> 146742545
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4697046
<OTHER-INCOME> 0
<EXPENSES-NET> (882729)
<NET-INVESTMENT-INCOME> 3814317
<REALIZED-GAINS-CURRENT> 95727
<APPREC-INCREASE-CURRENT> 6637281
<NET-CHANGE-FROM-OPS> 10547325
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3050685)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1273385
<NUMBER-OF-SHARES-REDEEMED> 2075827
<SHARES-REINVESTED> 160910
<NET-CHANGE-IN-ASSETS> (1569237)
<ACCUMULATED-NII-PRIOR> (388090)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (3280303)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 917682
<AVERAGE-NET-ASSETS> 147872190
<PER-SHARE-NAV-BEGIN> 10.60
<PER-SHARE-NII> 0.29
<PER-SHARE-GAIN-APPREC> 0.49
<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.11
<EXPENSE-RATIO> 1.09
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST FUND
<SERIES>
<NUMBER> 112
<NAME> NEW YORK MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 133614472
<INVESTMENTS-AT-VALUE> 146715291
<RECEIVABLES> 2335355
<ASSETS-OTHER> 1357
<OTHER-ITEMS-ASSETS> 22760
<TOTAL-ASSETS> 149074763
<PAYABLE-FOR-SECURITIES> 1506875
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 825343
<TOTAL-LIABILITIES> 2332218
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 136961537
<SHARES-COMMON-STOCK> 2399154
<SHARES-COMMON-PRIOR> 2522769
<ACCUMULATED-NII-CURRENT> (135235)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3184576)
<ACCUM-APPREC-OR-DEPREC> 13100819
<NET-ASSETS> 146742545
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4697046
<OTHER-INCOME> 0
<EXPENSES-NET> (882729)
<NET-INVESTMENT-INCOME> 3814317
<REALIZED-GAINS-CURRENT> 95727
<APPREC-INCREASE-CURRENT> 6637281
<NET-CHANGE-FROM-OPS> 10547325
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3050685)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 179654
<NUMBER-OF-SHARES-REDEEMED> 331637
<SHARES-REINVESTED> 28373
<NET-CHANGE-IN-ASSETS> (1569237)
<ACCUMULATED-NII-PRIOR> (388090)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (3280303)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 917682
<AVERAGE-NET-ASSETS> 147872190
<PER-SHARE-NAV-BEGIN> 10.59
<PER-SHARE-NII> 0.25
<PER-SHARE-GAIN-APPREC> 0.49
<PER-SHARE-DIVIDEND> (0.23)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.10
<EXPENSE-RATIO> 1.84
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME>MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 211
<NAME> MFS PENNSYLVANIA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 37036003
<INVESTMENTS-AT-VALUE> 38936750
<RECEIVABLES> 1605369
<ASSETS-OTHER> 377
<OTHER-ITEMS-ASSETS> 29037
<TOTAL-ASSETS> 40571533
<PAYABLE-FOR-SECURITIES> 1554227
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 172726
<TOTAL-LIABILITIES> 1726953
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 38733861
<SHARES-COMMON-STOCK> 1792886
<SHARES-COMMON-PRIOR> 1828105
<ACCUMULATED-NII-CURRENT> 17354
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1807382)
<ACCUM-APPREC-OR-DEPREC> 1900747
<NET-ASSETS> 38844580
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1127027
<OTHER-INCOME> 0
<EXPENSES-NET> (150157)
<NET-INVESTMENT-INCOME> 976510
<REALIZED-GAINS-CURRENT> 195740
<APPREC-INCREASE-CURRENT> 1506335
<NET-CHANGE-FROM-OPS> 2678585
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (459941)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 116510
<NUMBER-OF-SHARES-REDEEMED> (181291)
<SHARES-REINVESTED> 29562
<NET-CHANGE-IN-ASSETS> (2986810)
<ACCUMULATED-NII-PRIOR> 16202
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (2003122)
<GROSS-ADVISORY-FEES> 111293
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 290850
<AVERAGE-NET-ASSETS> 40237517
<PER-SHARE-NAV-BEGIN> 9.26
<PER-SHARE-NII> 0.25
<PER-SHARE-GAIN-APPREC> 0.40
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.66
<EXPENSE-RATIO> 0.30
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME>MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 212
<NAME> MFS PENNSYLVANIA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-1-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 37036003
<INVESTMENTS-AT-VALUE> 38936750
<RECEIVABLES> 1605369
<ASSETS-OTHER> 377
<OTHER-ITEMS-ASSETS> 29037
<TOTAL-ASSETS> 40571533
<PAYABLE-FOR-SECURITIES> 1554227
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 172726
<TOTAL-LIABILITIES> 1726953
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 38733861
<SHARES-COMMON-STOCK> 2221495
<SHARES-COMMON-PRIOR> 2682075
<ACCUMULATED-NII-CURRENT> 17354
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1807382)
<ACCUM-APPREC-OR-DEPREC> 1900747
<NET-ASSETS> 38844580
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1127027
<OTHER-INCOME> 0
<EXPENSES-NET> (150157)
<NET-INVESTMENT-INCOME> 976510
<REALIZED-GAINS-CURRENT> 195740
<APPREC-INCREASE-CURRENT> 1506335
<NET-CHANGE-FROM-OPS> 2678585
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (515417)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 185001
<NUMBER-OF-SHARES-REDEEMED> (671063)
<SHARES-REINVESTED> 25482
<NET-CHANGE-IN-ASSETS> (2986810)
<ACCUMULATED-NII-PRIOR> 16202
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (2003122)
<GROSS-ADVISORY-FEES> 111293
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 290850
<AVERAGE-NET-ASSETS> 40237517
<PER-SHARE-NAV-BEGIN> 9.28
<PER-SHARE-NII> 0.21
<PER-SHARE-GAIN-APPREC> 0.41
<PER-SHARE-DIVIDEND> (0.21)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.69
<EXPENSE-RATIO> 1.09
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 031
<NAME> MFS SOUTH CAROLINA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 159200637
<INVESTMENTS-AT-VALUE> 172494309
<RECEIVABLES> 3159455
<ASSETS-OTHER> 1558
<OTHER-ITEMS-ASSETS> 51896
<TOTAL-ASSETS> 175707218
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 492292
<TOTAL-LIABILITIES> 492292
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 164255156
<SHARES-COMMON-STOCK> 12119824
<SHARES-COMMON-PRIOR> 12533883
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (211229)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2099207)
<ACCUM-APPREC-OR-DEPREC> 13293672
<NET-ASSETS> 175214926
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5288571
<OTHER-INCOME> 0
<EXPENSES-NET> (1012801)
<NET-INVESTMENT-INCOME> 4275770
<REALIZED-GAINS-CURRENT> 1220605
<APPREC-INCREASE-CURRENT> 5337573
<NET-CHANGE-FROM-OPS> 10833948
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3777781)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 440720
<NUMBER-OF-SHARES-REDEEMED> (1020673)
<SHARES-REINVESTED> 165893
<NET-CHANGE-IN-ASSETS> 4435541
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (221229)
<OVERDIST-NET-GAINS-PRIOR> (3319812)
<GROSS-ADVISORY-FEES> 478887
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1108104
<AVERAGE-NET-ASSETS> 173919024
<PER-SHARE-NAV-BEGIN> 11.88
<PER-SHARE-NII> 0.30
<PER-SHARE-GAIN-APPREC> 0.47
<PER-SHARE-DIVIDEND> 0.31
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.34
<EXPENSE-RATIO> 1.08
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 032
<NAME> MFS SOUTH CAROLINA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 159200637
<INVESTMENTS-AT-VALUE> 172494309
<RECEIVABLES> 3159455
<ASSETS-OTHER> 1558
<OTHER-ITEMS-ASSETS> 51896
<TOTAL-ASSETS> 175707218
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 492292
<TOTAL-LIABILITIES> 492292
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 164255156
<SHARES-COMMON-STOCK> 2083024
<SHARES-COMMON-PRIOR> 1841229
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (211229)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2099207)
<ACCUM-APPREC-OR-DEPREC> 13293672
<NET-ASSETS> 175214926
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5288571
<OTHER-INCOME> 0
<EXPENSES-NET> (1012801)
<NET-INVESTMENT-INCOME> 4275770
<REALIZED-GAINS-CURRENT> 1220605
<APPREC-INCREASE-CURRENT> 5337573
<NET-CHANGE-FROM-OPS> 10833948
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (521455)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 317434
<NUMBER-OF-SHARES-REDEEMED> (100167)
<SHARES-REINVESTED> 24528
<NET-CHANGE-IN-ASSETS> 4435541
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (221229)
<OVERDIST-NET-GAINS-PRIOR> (3319812)
<GROSS-ADVISORY-FEES> 478887
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1108104
<AVERAGE-NET-ASSETS> 173919024
<PER-SHARE-NAV-BEGIN> 11.88
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> 0.27
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.33
<EXPENSE-RATIO> 1.73
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 131
<NAME> MFS TENNESSEE MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 116673881
<INVESTMENTS-AT-VALUE> 125789861
<RECEIVABLES> 3919176
<ASSETS-OTHER> 1102
<OTHER-ITEMS-ASSETS> 21313
<TOTAL-ASSETS> 129731452
<PAYABLE-FOR-SECURITIES> 3672115
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 351541
<TOTAL-LIABILITIES> 4023656
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 116857877
<SHARES-COMMON-STOCK> 10152825
<SHARES-COMMON-PRIOR> 10469429
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (45688)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (220373)
<ACCUM-APPREC-OR-DEPREC> 9115980
<NET-ASSETS> 125707796
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3837318
<OTHER-INCOME> 0
<EXPENSES-NET> (726220)
<NET-INVESTMENT-INCOME> 3111098
<REALIZED-GAINS-CURRENT> (874113)
<APPREC-INCREASE-CURRENT> 4414401
<NET-CHANGE-FROM-OPS> 8399612
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2768406)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (26197)
<NUMBER-OF-SHARES-SOLD> 431936
<NUMBER-OF-SHARES-REDEEMED> (879470)
<SHARES-REINVESTED> 130931
<NET-CHANGE-IN-ASSETS> 3271979
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (16248)
<OVERDIST-NET-GAINS-PRIOR> (1094486)
<GROSS-ADVISORY-FEES> 343699
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 798563
<AVERAGE-NET-ASSETS> 124821512
<PER-SHARE-NAV-BEGIN> 10.32
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> 0.44
<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.76
<EXPENSE-RATIO> 1.10
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 132
<NAME> MFS TENNESSEE MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 116673881
<INVESTMENTS-AT-VALUE> 125789861
<RECEIVABLES> 3919176
<ASSETS-OTHER> 1102
<OTHER-ITEMS-ASSETS> 21313
<TOTAL-ASSETS> 129731452
<PAYABLE-FOR-SECURITIES> 3672115
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 351541
<TOTAL-LIABILITIES> 4023656
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 116857877
<SHARES-COMMON-STOCK> 1531834
<SHARES-COMMON-PRIOR> 1400227
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (45688)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (220373)
<ACCUM-APPREC-OR-DEPREC> 9115980
<NET-ASSETS> 125707796
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3837318
<OTHER-INCOME> 0
<EXPENSES-NET> (726220)
<NET-INVESTMENT-INCOME> 3111098
<REALIZED-GAINS-CURRENT> (874113)
<APPREC-INCREASE-CURRENT> 4414401
<NET-CHANGE-FROM-OPS> 8399612
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (342692)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (3243)
<NUMBER-OF-SHARES-SOLD> 263177
<NUMBER-OF-SHARES-REDEEMED> (147782)
<SHARES-REINVESTED> 16213
<NET-CHANGE-IN-ASSETS> 3271979
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (16248)
<OVERDIST-NET-GAINS-PRIOR> (1094486)
<GROSS-ADVISORY-FEES> 343699
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 798563
<AVERAGE-NET-ASSETS> 124821512
<PER-SHARE-NAV-BEGIN> 10.31
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> 0.45
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.75
<EXPENSE-RATIO> 1.75
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 041
<NAME> MFS VIRGINIA MUNICIPAL FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 376336284
<INVESTMENTS-AT-VALUE> 406118773
<RECEIVABLES> 7435494
<ASSETS-OTHER> 3778
<OTHER-ITEMS-ASSETS> 72772
<TOTAL-ASSETS> 413630817
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1348653
<TOTAL-LIABILITIES> 1348653
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 393676065
<SHARES-COMMON-STOCK> 32811670
<SHARES-COMMON-PRIOR> 34278440
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1348372)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (9828018)
<ACCUM-APPREC-OR-DEPREC> 29782489
<NET-ASSETS> 412282164
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12605468
<OTHER-INCOME> 0
<EXPENSES-NET> 2232200
<NET-INVESTMENT-INCOME> 10373268
<REALIZED-GAINS-CURRENT> 3005919
<APPREC-INCREASE-CURRENT> 13212979
<NET-CHANGE-FROM-OPS> 26592166
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9611235)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (84460)
<NUMBER-OF-SHARES-SOLD> 1535793
<NUMBER-OF-SHARES-REDEEMED> 3419048
<SHARES-REINVESTED> 416484
<NET-CHANGE-IN-ASSETS> (652168)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (1257215)
<OVERDIST-NET-GAINS-PRIOR> (12833937)
<GROSS-ADVISORY-FEES> 1136627
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2477912
<AVERAGE-NET-ASSETS> 412919963
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> .29
<PER-SHARE-GAIN-APPREC> .44
<PER-SHARE-DIVIDEND> (.29)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.50
<EXPENSE-RATIO> 1.04
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 042
<NAME> MFS VIRGINIA MUNICIPAL FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 376336284
<INVESTMENTS-AT-VALUE> 406118773
<RECEIVABLES> 7435494
<ASSETS-OTHER> 3778
<OTHER-ITEMS-ASSETS> 72772
<TOTAL-ASSETS> 413630817
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1348653
<TOTAL-LIABILITIES> 1348653
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 393676065
<SHARES-COMMON-STOCK> 2749422
<SHARES-COMMON-PRIOR> 2764192
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1348372)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (9828018)
<ACCUM-APPREC-OR-DEPREC> 29782489
<NET-ASSETS> 412282164
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12605468
<OTHER-INCOME> 0
<EXPENSES-NET> 2232200
<NET-INVESTMENT-INCOME> 10373268
<REALIZED-GAINS-CURRENT> 3005919
<APPREC-INCREASE-CURRENT> 13212979
<NET-CHANGE-FROM-OPS> 26592166
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (687883)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (6045)
<NUMBER-OF-SHARES-SOLD> 169686
<NUMBER-OF-SHARES-REDEEMED> 210816
<SHARES-REINVESTED> 26361
<NET-CHANGE-IN-ASSETS> (652168)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (1257215)
<OVERDIST-NET-GAINS-PRIOR> (12833937)
<GROSS-ADVISORY-FEES> 1136627
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2477912
<AVERAGE-NET-ASSETS> 412919963
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> .25
<PER-SHARE-GAIN-APPREC> .44
<PER-SHARE-DIVIDEND> (.25)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.50
<EXPENSE-RATIO> 1.69
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 043
<NAME> MFS VIRGINIA MUNICIPAL FUND CLASS C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 376336284
<INVESTMENTS-AT-VALUE> 406118773
<RECEIVABLES> 7435494
<ASSETS-OTHER> 3778
<OTHER-ITEMS-ASSETS> 72772
<TOTAL-ASSETS> 413630817
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1348653
<TOTAL-LIABILITIES> 1348653
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 393676065
<SHARES-COMMON-STOCK> 281416
<SHARES-COMMON-PRIOR> 287703
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1348372)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (9828018)
<ACCUM-APPREC-OR-DEPREC> 29782489
<NET-ASSETS> 412282164
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12605468
<OTHER-INCOME> 0
<EXPENSES-NET> 2232200
<NET-INVESTMENT-INCOME> 10373268
<REALIZED-GAINS-CURRENT> 3005919
<APPREC-INCREASE-CURRENT> 13212979
<NET-CHANGE-FROM-OPS> 26592166
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (74150)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (652)
<NUMBER-OF-SHARES-SOLD> 66174
<NUMBER-OF-SHARES-REDEEMED> 77115
<SHARES-REINVESTED> 4654
<NET-CHANGE-IN-ASSETS> (652168)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (1257215)
<OVERDIST-NET-GAINS-PRIOR> (12833937)
<GROSS-ADVISORY-FEES> 1136627
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 29782489
<AVERAGE-NET-ASSETS> 412919963
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> .25
<PER-SHARE-GAIN-APPREC> .44
<PER-SHARE-DIVIDEND> (.25)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.50
<EXPENSE-RATIO> 1.69
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 051
<NAME> MFS WEST VIRGINIA MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1997
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 127499445
<INVESTMENTS-AT-VALUE> 139497437
<RECEIVABLES> 5687192
<ASSETS-OTHER> 1289
<OTHER-ITEMS-ASSETS> 85282
<TOTAL-ASSETS> 145271200
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 425450
<TOTAL-LIABILITIES> 425450
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137007226
<SHARES-COMMON-STOCK> 11152750
<SHARES-COMMON-PRIOR> 11150306
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (546118)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3613350)
<ACCUM-APPREC-OR-DEPREC> 11997992
<NET-ASSETS> 144845750
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4351146
<OTHER-INCOME> 0
<EXPENSES-NET> 860963
<NET-INVESTMENT-INCOME> 3490509
<REALIZED-GAINS-CURRENT> (13947)
<APPREC-INCREASE-CURRENT> 4524053
<NET-CHANGE-FROM-OPS> 8000615
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3181418)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (106127)
<NUMBER-OF-SHARES-SOLD> 354915
<NUMBER-OF-SHARES-REDEEMED> 503063
<SHARES-REINVESTED> 150683
<NET-CHANGE-IN-ASSETS> 5152043
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (429680)
<OVERDIST-NET-GAINS-PRIOR> (3599403)
<GROSS-ADVISORY-FEES> 389676
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 890963
<AVERAGE-NET-ASSETS> 142084491
<PER-SHARE-NAV-BEGIN> 11.31
<PER-SHARE-NII> .29
<PER-SHARE-GAIN-APPREC> .37
<PER-SHARE-DIVIDEND> .29
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.67
<EXPENSE-RATIO> 1.15
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 052
<NAME> MFS WEST VIRGINIA MUNICIPAL BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1997
<PERIOD-START> APR-01-1997
<PERIOD-END> SEP-30-1997
<INVESTMENTS-AT-COST> 127499445
<INVESTMENTS-AT-VALUE> 139497437
<RECEIVABLES> 5687192
<ASSETS-OTHER> 1289
<OTHER-ITEMS-ASSETS> 85282
<TOTAL-ASSETS> 145271200
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 425450
<TOTAL-LIABILITIES> 425450
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137007226
<SHARES-COMMON-STOCK> 1263405
<SHARES-COMMON-PRIOR> 1201777
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (546118)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3613350)
<ACCUM-APPREC-OR-DEPREC> 11997992
<NET-ASSETS> 144845750
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4351146
<OTHER-INCOME> 0
<EXPENSES-NET> 860963
<NET-INVESTMENT-INCOME> 3490509
<REALIZED-GAINS-CURRENT> (13947)
<APPREC-INCREASE-CURRENT> 4524053
<NET-CHANGE-FROM-OPS> 8000615
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (309091)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (10311)
<NUMBER-OF-SHARES-SOLD> 119303
<NUMBER-OF-SHARES-REDEEMED> 75065
<SHARES-REINVESTED> 17439
<NET-CHANGE-IN-ASSETS> 5152043
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (429680)
<OVERDIST-NET-GAINS-PRIOR> (3599403)
<GROSS-ADVISORY-FEES> 389676
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 890963
<AVERAGE-NET-ASSETS> 142084491
<PER-SHARE-NAV-BEGIN> 11.31
<PER-SHARE-NII> .25
<PER-SHARE-GAIN-APPREC> .36
<PER-SHARE-DIVIDEND> .26
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.66
<EXPENSE-RATIO> 1.80
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
