<PAGE> PAGE 1
000 B000000 03/31/98
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
010 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
010 B00AA01 801-17352
<PAGE> PAGE 3
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02116
011 A00AA01 MFS FUND DISTRIBUTORS, INC.
011 B00AA01 8-27864
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 55
019 C00AA00 MASSFINSER
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
<PAGE> PAGE 4
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 PAINE WEBBER
022 B000001 13-2638166
022 C000001 624044
022 D000001 649460
022 A000002 SMITH BARNEY
022 B000002 13-1912900
022 C000002 250921
022 D000002 189198
022 A000003 MORGAN (J.P.) SECURITIES
022 B000003 13-3224016
022 C000003 176418
022 D000003 170779
022 A000004 EQUITY SECURITY SYSTEMS
022 B000004 00-0000000
022 C000004 86018
022 D000004 69699
022 A000005 CRAIGIE INCORPORATED
022 B000005 54-0294670
022 C000005 49295
022 D000005 62103
022 A000006 PNC SECURITIES
022 B000006 00-0000000
022 C000006 53556
022 D000006 53098
022 A000007 CITIBANK SECURITIES
022 B000007 00-0000000
022 C000007 42200
022 D000007 56900
022 A000008 LEHMAN BROTHERS
022 B000008 13-2518466
022 C000008 35237
022 D000008 55974
022 A000009 MERRILL LYNCH
022 B000009 13-5674085
022 C000009 27758
022 D000009 54461
022 A000010 BEAR, STEARNS SECURITIES
022 B000010 13-3299429
022 C000010 38203
022 D000010 41512
023 C000000 1978951
023 D000000 2025736
024 00AA00 N
025 D00AA01 0
025 D00AA02 0
025 D00AA03 0
<PAGE> PAGE 5
025 D00AA04 0
025 D00AA05 0
025 D00AA06 0
025 D00AA07 0
025 D00AA08 0
026 A000000 Y
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
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 N
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 Y
077 B000000 Y
078 000000 N
080 A00AA00 NATIONAL UNION INSURANCE CO.
080 B00AA00 ICI MUTUAL
080 C00AA00 65225
081 A00AA00 Y
081 B00AA00 113
082 A00AA00 Y
082 B00AA00 100
083 A00AA00 N
<PAGE> PAGE 6
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
086 E020000 0
086 F010000 0
086 F020000 0
028 A010100 1048
028 A020100 305
028 A030100 0
028 A040100 1496
028 B010100 718
028 B020100 304
028 B030100 0
028 B040100 1555
028 C010100 1219
028 C020100 302
028 C030100 0
028 C040100 1524
028 D010100 797
028 D020100 298
028 D030100 0
028 D040100 973
028 E010100 561
028 E020100 299
028 E030100 0
028 E040100 1026
028 F010100 1095
028 F020100 301
028 F030100 0
028 F040100 1316
028 G010100 5438
028 G020100 1809
028 G030100 0
028 G040100 7890
028 H000100 2745
029 000100 Y
030 A000100 220
030 B000100 4.75
030 C000100 0.00
031 A000100 40
<PAGE> PAGE 7
031 B000100 0
032 000100 180
033 000100 0
034 000100 Y
035 000100 49
036 A000100 N
036 B000100 0
042 A000100 0
042 B000100 0
042 C000100 43
042 D000100 57
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 641
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
<PAGE> PAGE 8
055 B000100 N
056 000100 Y
057 000100 N
058 A000100 N
059 000100 Y
060 A000100 N
060 B000100 N
061 000100 1000
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 5.4
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 94.8
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 0
063 B000100 15.9
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 N
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
<PAGE> PAGE 9
070 K020100 N
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 N
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 30123
071 B000100 36434
071 C000100 141446
071 D000100 21
072 A000100 12
072 B000100 8570
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 804
072 G000100 21
072 H000100 0
072 I000100 183
072 J000100 59
072 K000100 13
072 L000100 23
072 M000100 17
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 32
072 S000100 4
072 T000100 639
072 U000100 0
072 V000100 0
072 W000100 72
072 X000100 1867
072 Y000100 181
072 Z000100 6884
072AA000100 1098
072BB000100 0
072CC010100 6667
072CC020100 0
072DD010100 6064
072DD020100 820
<PAGE> PAGE 10
072EE000100 0
073 A010100 0.5400
073 A020100 0.4700
073 B000100 0.0000
073 C000100 0.0000
074 A000100 38
074 B000100 0
074 C000100 8000
074 D000100 139893
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 2010
074 K000100 0
074 L000100 1689
074 M000100 1
074 N000100 151631
074 O000100 0
074 P000100 12
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 3979
074 S000100 0
074 T000100 147640
074 U010100 10986
074 U020100 1886
074 V010100 11.47
074 V020100 11.47
074 W000100 0.0000
074 X000100 3913
074 Y000100 0
075 A000100 0
075 B000100 146439
076 000100 0.00
028 A010200 2021
028 A020200 988
028 A030200 0
028 A040200 4899
028 B010200 2326
028 B020200 983
028 B030200 0
028 B040200 5113
028 C010200 2367
028 C020200 987
028 C030200 0
028 C040200 5590
028 D010200 10132
<PAGE> PAGE 11
028 D020200 983
028 D030200 0
028 D040200 4372
028 E010200 9852
028 E020200 990
028 E030200 0
028 E040200 14015
028 F010200 11181
028 F020200 982
028 F030200 0
028 F040200 11246
028 G010200 37879
028 G020200 5913
028 G030200 0
028 G040200 45235
028 H000200 32306
029 000200 Y
030 A000200 585
030 B000200 4.75
030 C000200 0.00
031 A000200 102
031 B000200 0
032 000200 483
033 000200 0
034 000200 Y
035 000200 109
036 A000200 N
036 B000200 0
042 A000200 0
042 B000200 0
042 C000200 38
042 D000200 62
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
043 000200 1824
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
048 D020200 0.000
048 E010200 0
<PAGE> PAGE 12
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 0.9
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 0.0
062 M000200 0.0
062 N000200 0.0
062 O000200 98.8
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 18.1
064 A000200 Y
064 B000200 N
<PAGE> PAGE 13
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 N
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 101383
071 B000200 112259
071 C000200 423682
071 D000200 24
072 A000200 12
072 B000200 25515
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 2357
072 G000200 60
072 H000200 0
072 I000200 538
072 J000200 161
072 K000200 27
<PAGE> PAGE 14
072 L000200 39
072 M000200 18
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 31
072 S000200 4
072 T000200 1820
072 U000200 0
072 V000200 0
072 W000200 116
072 X000200 5171
072 Y000200 478
072 Z000200 20822
072AA000200 4102
072BB000200 0
072CC010200 17339
072CC020200 0
072DD010200 18763
072DD020200 1363
072EE000200 0
073 A010200 0.5900
073 A020200 0.5100
073 B000200 0.0000
073 C000200 0.0000
074 A000200 59
074 B000200 0
074 C000200 3800
074 D000200 427679
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 1049
074 K000200 0
074 L000200 8604
074 M000200 4
074 N000200 441195
074 O000200 7123
074 P000200 35
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 1062
074 S000200 0
074 T000200 432975
074 U010200 31316
074 U020200 3642
<PAGE> PAGE 15
074 V010200 12.15
074 V020200 12.15
074 W000200 0.0000
074 X000200 9002
074 Y000200 0
075 A000200 0
075 B000200 429544
076 000200 0.00
028 A010300 842
028 A020300 365
028 A030300 0
028 A040300 1809
028 B010300 781
028 B020300 358
028 B030300 0
028 B040300 1110
028 C010300 1479
028 C020300 358
028 C030300 0
028 C040300 1246
028 D010300 1707
028 D020300 352
028 D030300 0
028 D040300 2145
028 E010300 1455
028 E020300 350
028 E030300 0
028 E040300 1794
028 F010300 1601
028 F020300 347
028 F030300 0
028 F040300 2757
028 G010300 7865
028 G020300 2130
028 G030300 0
028 G040300 10861
028 H000300 3538
029 000300 Y
030 A000300 234
030 B000300 4.75
030 C000300 0.00
031 A000300 40
031 B000300 0
032 000300 194
033 000300 0
034 000300 Y
035 000300 49
036 A000300 N
036 B000300 0
042 A000300 0
042 B000300 0
<PAGE> PAGE 16
042 C000300 44
042 D000300 56
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
043 000300 777
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
061 000300 1000
062 A000300 Y
<PAGE> PAGE 17
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 1.3
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 97.4
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.0
063 A000300 0
063 B000300 17.9
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
070 O010300 Y
070 O020300 N
<PAGE> PAGE 18
070 P010300 Y
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300 49165
071 B000300 53150
071 C000300 169534
071 D000300 29
072 A000300 12
072 B000300 10351
072 C000300 0
072 D000300 0
072 E000300 0
072 F000300 962
072 G000300 24
072 H000300 0
072 I000300 220
072 J000300 70
072 K000300 11
072 L000300 15
072 M000300 18
072 N000300 0
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 32
072 S000300 4
072 T000300 775
072 U000300 0
072 V000300 0
072 W000300 60
072 X000300 2191
072 Y000300 191
072 Z000300 8351
072AA000300 2306
072BB000300 0
072CC010300 6822
072CC020300 0
072DD010300 7292
072DD020300 1058
072EE000300 0
073 A010300 0.6000
073 A020300 0.5200
073 B000300 0.0000
073 C000300 0.0000
074 A000300 94
074 B000300 0
074 C000300 2300
074 D000300 172329
<PAGE> PAGE 19
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
074 J000300 1034
074 K000300 0
074 L000300 2700
074 M000300 2
074 N000300 178459
074 O000300 1002
074 P000300 15
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 536
074 S000300 0
074 T000300 176906
074 U010300 11887
074 U020300 2244
074 V010300 12.52
074 V020300 12.52
074 W000300 0.0000
074 X000300 3562
074 Y000300 0
075 A000300 0
075 B000300 175343
076 000300 0.00
028 A010400 6409
028 A020400 822
028 A030400 0
028 A040400 4573
028 B010400 1054
028 B020400 820
028 B030400 0
028 B040400 7672
028 C010400 1558
028 C020400 804
028 C030400 0
028 C040400 6150
028 D010400 2688
028 D020400 815
028 D030400 0
028 D040400 2204
028 E010400 7123
028 E020400 816
028 E030400 0
028 E040400 8393
028 F010400 4549
028 F020400 807
<PAGE> PAGE 20
028 F030400 0
028 F040400 6380
028 G010400 23381
028 G020400 4884
028 G030400 0
028 G040400 35372
028 H000400 20325
029 000400 Y
030 A000400 451
030 B000400 4.75
030 C000400 0.00
031 A000400 82
031 B000400 0
032 000400 369
033 000400 0
034 000400 Y
035 000400 86
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 1669
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
048 I010400 0
048 I020400 0.000
<PAGE> PAGE 21
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 0.5
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 98.3
062 P000400 0.0
062 Q000400 0.0
062 R000400 0.0
063 A000400 0
063 B000400 17.2
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
070 D020400 N
070 E010400 Y
<PAGE> PAGE 22
070 E020400 N
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 153703
071 B000400 164049
071 C000400 398957
071 D000400 39
072 A000400 12
072 B000400 24651
072 C000400 0
072 D000400 0
072 E000400 0
072 F000400 2262
072 G000400 58
072 H000400 0
072 I000400 516
072 J000400 155
072 K000400 25
072 L000400 37
072 M000400 18
072 N000400 0
072 O000400 0
072 P000400 0
072 Q000400 0
072 R000400 40
072 S000400 5
072 T000400 1664
<PAGE> PAGE 23
072 U000400 0
072 V000400 0
072 W000400 106
072 X000400 4886
072 Y000400 502
072 Z000400 20267
072AA000400 6280
072BB000400 0
072CC010400 13749
072CC020400 0
072DD010400 18763
072DD020400 1363
072EE000400 0
073 A010400 0.5700
073 A020400 0.5000
073 B000400 0.0000
073 C000400 0.0000
074 A000400 74
074 B000400 0
074 C000400 2100
074 D000400 402013
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 0
074 J000400 50
074 K000400 0
074 L000400 6164
074 M000400 4
074 N000400 410405
074 O000400 0
074 P000400 33
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 1363
074 S000400 0
074 T000400 409009
074 U010400 32127
074 U020400 2835
074 V010400 11.61
074 V020400 11.61
074 W000400 0.0000
074 X000400 8572
074 Y000400 0
075 A000400 0
075 B000400 412131
076 000400 0.00
028 A010500 664
<PAGE> PAGE 24
028 A020500 325
028 A030500 0
028 A040500 1375
028 B010500 643
028 B020500 322
028 B030500 0
028 B040500 497
028 C010500 326
028 C020500 319
028 C030500 0
028 C040500 1057
028 D010500 681
028 D020500 320
028 D030500 0
028 D040500 1172
028 E010500 1643
028 E020500 318
028 E030500 0
028 E040500 1368
028 F010500 387
028 F020500 317
028 F030500 0
028 F040500 1459
028 G010500 4346
028 G020500 1922
028 G030500 0
028 G040500 6928
028 H000500 3209
029 000500 Y
030 A000500 269
030 B000500 4.75
030 C000500 0.00
031 A000500 48
031 B000500 0
032 000500 221
033 000500 0
034 000500 Y
035 000500 35
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 599
044 000500 0
045 000500 Y
<PAGE> PAGE 25
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 Y
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 0.1
062 F000500 0.0
062 G000500 0.0
062 H000500 0.0
062 I000500 0.0
062 J000500 0.0
<PAGE> PAGE 26
062 K000500 0.0
062 L000500 0.0
062 M000500 0.0
062 N000500 0.0
062 O000500 98.4
062 P000500 0.0
062 Q000500 0.0
062 R000500 0.0
063 A000500 0
063 B000500 18.8
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 N
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 25169
071 B000500 23037
071 C000500 139561
<PAGE> PAGE 27
071 D000500 17
072 A000500 12
072 B000500 8732
072 C000500 0
072 D000500 0
072 E000500 0
072 F000500 788
072 G000500 20
072 H000500 0
072 I000500 180
072 J000500 57
072 K000500 8
072 L000500 14
072 M000500 18
072 N000500 0
072 O000500 0
072 P000500 0
072 Q000500 0
072 R000500 31
072 S000500 4
072 T000500 598
072 U000500 0
072 V000500 0
072 W000500 53
072 X000500 1771
072 Y000500 112
072 Z000500 7073
072AA000500 0
072BB000500 345
072CC010500 5402
072CC020500 0
072DD010500 6434
072DD020500 639
072EE000500 0
073 A010500 0.5800
073 A020500 0.5100
073 B000500 0.0000
073 C000500 0.0000
074 A000500 54
074 B000500 0
074 C000500 100
074 D000500 143217
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 0
074 J000500 20
074 K000500 0
074 L000500 2578
074 M000500 2
<PAGE> PAGE 28
074 N000500 145971
074 O000500 0
074 P000500 12
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 485
074 S000500 0
074 T000500 145474
074 U010500 11045
074 U020500 1315
074 V010500 11.77
074 V020500 11.77
074 W000500 0.0000
074 X000500 3180
074 Y000500 0
075 A000500 0
075 B000500 143896
076 000500 0.00
028 A010600 6070
028 A020600 494
028 A030600 0
028 A040600 6797
028 B010600 3794
028 B020600 496
028 B030600 0
028 B040600 3928
028 C010600 4415
028 C020600 490
028 C030600 0
028 C040600 5564
028 D010600 6768
028 D020600 485
028 D030600 0
028 D040600 6320
028 E010600 5588
028 E020600 797
028 E030600 0
028 E040600 8328
028 F010600 8580
028 F020600 484
028 F030600 0
028 F040600 6265
028 G010600 35215
028 G020600 3246
028 G030600 0
028 G040600 37202
028 H000600 32271
029 000600 Y
030 A000600 267
<PAGE> PAGE 29
030 B000600 4.75
030 C000600 0.00
031 A000600 43
031 B000600 0
032 000600 224
033 000600 0
034 000600 Y
035 000600 36
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 999
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
052 000600 N
053 A000600 Y
<PAGE> PAGE 30
053 B000600 Y
053 C000600 Y
055 A000600 Y
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 96.7
062 P000600 0.0
062 Q000600 0.0
062 R000600 0.0
063 A000600 0
063 B000600 16.7
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
070 I010600 N
070 I020600 N
<PAGE> PAGE 31
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 59811
071 B000600 65687
071 C000600 248340
071 D000600 24
072 A000600 12
072 B000600 15827
072 C000600 0
072 D000600 0
072 E000600 0
072 F000600 1396
072 G000600 36
072 H000600 0
072 I000600 319
072 J000600 105
072 K000600 16
072 L000600 25
072 M000600 17
072 N000600 0
072 O000600 0
072 P000600 0
072 Q000600 0
072 R000600 31
072 S000600 11
072 T000600 997
072 U000600 0
072 V000600 0
072 W000600 101
072 X000600 3054
072 Y000600 289
072 Z000600 13062
072AA000600 0
072BB000600 1678
072CC010600 9434
<PAGE> PAGE 32
072CC020600 0
072DD010600 12307
072DD020600 755
072EE000600 0
073 A010600 0.5800
073 A020600 0.5100
073 B000600 0.0000
073 C000600 0.0000
074 A000600 41
074 B000600 0
074 C000600 3800
074 D000600 248299
074 E000600 0
074 F000600 0
074 G000600 0
074 H000600 0
074 I000600 0
074 J000600 300
074 K000600 0
074 L000600 4988
074 M000600 2
074 N000600 257430
074 O000600 558
074 P000600 19
074 Q000600 0
074 R010600 0
074 R020600 0
074 R030600 0
074 R040600 242
074 S000600 0
074 T000600 256611
074 U010600 20970
074 U020600 1652
074 V010600 11.34
074 V020600 11.35
074 W000600 0.0000
074 X000600 4452
074 Y000600 0
075 A000600 0
075 B000600 254472
076 000600 0.00
028 A010700 732
028 A020700 151
028 A030700 0
028 A040700 926
028 B010700 301
028 B020700 152
028 B030700 0
028 B040700 627
028 C010700 255
028 C020700 152
<PAGE> PAGE 33
028 C030700 0
028 C040700 619
028 D010700 582
028 D020700 151
028 D030700 0
028 D040700 672
028 E010700 541
028 E020700 153
028 E030700 0
028 E040700 993
028 F010700 346
028 F020700 143
028 F030700 0
028 F040700 1373
028 G010700 2757
028 G020700 902
028 G030700 0
028 G040700 5210
028 H000700 1527
029 000700 Y
030 A000700 92
030 B000700 4.75
030 C000700 0.00
031 A000700 16
031 B000700 0
032 000700 76
033 000700 0
034 000700 Y
035 000700 47
036 A000700 N
036 B000700 0
042 A000700 0
042 B000700 0
042 C000700 31
042 D000700 69
042 E000700 0
042 F000700 0
042 G000700 0
042 H000700 0
043 000700 258
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
048 C010700 0
048 C020700 0.000
<PAGE> PAGE 34
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 1.1
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 97.3
062 P000700 0.0
062 Q000700 0.0
062 R000700 0.0
063 A000700 0
<PAGE> PAGE 35
063 B000700 15.6
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 N
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 12088
071 B000700 14283
071 C000700 68931
071 D000700 18
072 A000700 12
072 B000700 4370
072 C000700 0
072 D000700 0
072 E000700 0
072 F000700 390
072 G000700 10
072 H000700 0
<PAGE> PAGE 36
072 I000700 89
072 J000700 28
072 K000700 4
072 L000700 9
072 M000700 18
072 N000700 0
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 31
072 S000700 1
072 T000700 258
072 U000700 0
072 V000700 0
072 W000700 43
072 X000700 881
072 Y000700 88
072 Z000700 3577
072AA000700 0
072BB000700 558
072CC010700 3175
072CC020700 0
072DD010700 3095
072DD020700 470
072EE000700 0
073 A010700 0.5500
073 A020700 0.4700
073 B000700 0.0000
073 C000700 0.0000
074 A000700 138
074 B000700 0
074 C000700 810
074 D000700 68492
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 0
074 J000700 20
074 K000700 0
074 L000700 1193
074 M000700 1
074 N000700 70654
074 O000700 0
074 P000700 5
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 232
074 S000700 0
<PAGE> PAGE 37
074 T000700 70417
074 U010700 5440
074 U020700 993
074 V010700 10.95
074 V020700 10.95
074 W000700 0.0000
074 X000700 1627
074 Y000700 0
075 A000700 0
075 B000700 71105
076 000700 0.00
028 A011100 2797
028 A021100 341
028 A031100 0
028 A041100 3298
028 B011100 1298
028 B021100 339
028 B031100 0
028 B041100 3367
028 C011100 3696
028 C021100 336
028 C031100 0
028 C041100 2830
028 D011100 2538
028 D021100 336
028 D031100 0
028 D041100 3164
028 E011100 2390
028 E021100 340
028 E031100 0
028 E041100 3647
028 F011100 2271
028 F021100 340
028 F031100 0
028 F041100 3497
028 G011100 14990
028 G021100 2032
028 G031100 0
028 G041100 19803
028 H001100 13504
029 001100 Y
030 A001100 140
030 B001100 4.75
030 C001100 0.00
031 A001100 14
031 B001100 0
032 001100 126
033 001100 0
034 001100 Y
035 001100 69
036 A001100 N
<PAGE> PAGE 38
036 B001100 0
042 A001100 0
042 B001100 0
042 C001100 35
042 D001100 65
042 E001100 0
042 F001100 0
042 G001100 0
042 H001100 0
043 001100 568
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 Y
053 C001100 Y
055 A001100 Y
055 B001100 N
056 001100 Y
057 001100 N
058 A001100 N
059 001100 Y
060 A001100 N
<PAGE> PAGE 39
060 B001100 N
061 001100 1000
062 A001100 Y
062 B001100 0.0
062 C001100 0.0
062 D001100 0.0
062 E001100 0.4
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 98.2
062 P001100 0.0
062 Q001100 0.0
062 R001100 0.0
063 A001100 0
063 B001100 15.4
064 A001100 Y
064 B001100 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 N
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
070 M011100 N
070 M021100 N
070 N011100 N
<PAGE> PAGE 40
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 59571
071 B001100 69903
071 C001100 144728
071 D001100 41
072 A001100 12
072 B001100 9083
072 C001100 0
072 D001100 0
072 E001100 0
072 F001100 807
072 G001100 21
072 H001100 0
072 I001100 185
072 J001100 58
072 K001100 10
072 L001100 15
072 M001100 18
072 N001100 0
072 O001100 0
072 P001100 0
072 Q001100 0
072 R001100 31
072 S001100 9
072 T001100 566
072 U001100 0
072 V001100 0
072 W001100 98
072 X001100 1818
072 Y001100 117
072 Z001100 7382
072AA001100 557
072BB001100 0
072CC011100 8128
072CC021100 0
072DD011100 5984
072DD021100 1120
072EE001100 0
073 A011100 0.5500
073 A021100 0.4600
073 B001100 0.0000
073 C001100 0.0000
074 A001100 52
<PAGE> PAGE 41
074 B001100 0
074 C001100 600
074 D001100 143322
074 E001100 0
074 F001100 0
074 G001100 0
074 H001100 0
074 I001100 0
074 J001100 1047
074 K001100 0
074 L001100 2735
074 M001100 1
074 N001100 147757
074 O001100 1273
074 P001100 11
074 Q001100 0
074 R011100 0
074 R021100 0
074 R031100 0
074 R041100 479
074 S001100 0
074 T001100 145994
074 U011100 10603
074 U021100 2365
074 V011100 11.26
074 V021100 11.26
074 W001100 0.0000
074 X001100 3441
074 Y001100 0
075 A001100 0
075 B001100 147411
076 001100 0.00
028 A011300 823
028 A021300 248
028 A031300 0
028 A041300 736
028 B011300 619
028 B021300 247
028 B031300 0
028 B041300 933
028 C011300 435
028 C021300 249
028 C031300 0
028 C041300 1072
028 D011300 856
028 D021300 239
028 D031300 0
028 D041300 639
028 E011300 515
028 E021300 241
028 E031300 0
<PAGE> PAGE 42
028 E041300 1271
028 F011300 920
028 F021300 239
028 F031300 0
028 F041300 1439
028 G011300 4168
028 G021300 1463
028 G031300 0
028 G041300 6090
028 H001300 1967
029 001300 Y
030 A001300 190
030 B001300 4.75
030 C001300 0.00
031 A001300 35
031 B001300 0
032 001300 155
033 001300 0
034 001300 Y
035 001300 35
036 A001300 N
036 B001300 0
042 A001300 0
042 B001300 0
042 C001300 42
042 D001300 58
042 E001300 0
042 F001300 0
042 G001300 0
042 H001300 0
043 001300 547
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
048 G011300 0
048 G021300 0.000
048 H011300 0
<PAGE> PAGE 43
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 0.2
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 17.6
064 A001300 Y
064 B001300 N
070 A011300 Y
070 A021300 N
070 B011300 N
070 B021300 N
070 C011300 Y
070 C021300 N
<PAGE> PAGE 44
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 31733
071 B001300 32999
071 C001300 122524
071 D001300 26
072 A001300 12
072 B001300 7588
072 C001300 0
072 D001300 0
072 E001300 0
072 F001300 691
072 G001300 18
072 H001300 0
072 I001300 158
072 J001300 51
072 K001300 7
072 L001300 10
072 M001300 18
072 N001300 0
072 O001300 0
072 P001300 0
072 Q001300 0
<PAGE> PAGE 45
072 R001300 34
072 S001300 3
072 T001300 546
072 U001300 0
072 V001300 0
072 W001300 43
072 X001300 1579
072 Y001300 145
072 Z001300 6154
072AA001300 1327
072BB001300 0
072CC011300 5784
072CC021300 0
072DD011300 5445
072DD021300 709
072EE001300 0
073 A011300 0.5300
073 A021300 0.4600
073 B001300 0.0000
073 C001300 0.0000
074 A001300 85
074 B001300 0
074 C001300 300
074 D001300 125133
074 E001300 0
074 F001300 0
074 G001300 0
074 H001300 0
074 I001300 0
074 J001300 135
074 K001300 0
074 L001300 1872
074 M001300 1
074 N001300 127526
074 O001300 0
074 P001300 11
074 Q001300 0
074 R011300 0
074 R021300 0
074 R031300 0
074 R041300 446
074 S001300 0
074 T001300 127069
074 U011300 9975
074 U021300 1668
074 V011300 10.91
074 V021300 10.91
074 W001300 0.0000
074 X001300 2332
074 Y001300 0
075 A001300 0
<PAGE> PAGE 46
075 B001300 125965
076 001300 0.00
028 A011400 540
028 A021400 136
028 A031400 0
028 A041400 1441
028 B011400 289
028 B021400 137
028 B031400 0
028 B041400 413
028 C011400 626
028 C021400 653
028 C031400 0
028 C041400 579
028 D011400 594
028 D021400 140
028 D031400 0
028 D041400 586
028 E011400 126
028 E021400 141
028 E031400 0
028 E041400 811
028 F011400 386
028 F021400 139
028 F031400 0
028 F041400 518
028 G011400 2561
028 G021400 1346
028 G031400 0
028 G041400 4348
028 H001400 1504
029 001400 Y
030 A001400 80
030 B001400 4.75
030 C001400 0.00
031 A001400 15
031 B001400 0
032 001400 65
033 001400 0
034 001400 Y
035 001400 8
036 A001400 N
036 B001400 0
042 A001400 0
042 B001400 0
042 C001400 21
042 D001400 79
042 E001400 0
042 F001400 0
042 G001400 0
042 H001400 0
<PAGE> PAGE 47
043 001400 267
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 Y
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
062 E001400 1.2
062 F001400 0.0
062 G001400 0.0
<PAGE> PAGE 48
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 98.7
062 P001400 0.0
062 Q001400 0.0
062 R001400 0.0
063 A001400 0
063 B001400 17.0
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 Y
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
070 Q021400 N
070 R011400 N
070 R021400 N
<PAGE> PAGE 49
071 A001400 17533
071 B001400 20391
071 C001400 82859
071 D001400 21
072 A001400 12
072 B001400 5186
072 C001400 0
072 D001400 0
072 E001400 0
072 F001400 462
072 G001400 12
072 H001400 0
072 I001400 106
072 J001400 36
072 K001400 3
072 L001400 8
072 M001400 18
072 N001400 0
072 O001400 0
072 P001400 0
072 Q001400 0
072 R001400 30
072 S001400 2
072 T001400 267
072 U001400 0
072 V001400 0
072 W001400 50
072 X001400 994
072 Y001400 67
072 Z001400 4259
072AA001400 804
072BB001400 0
072CC011400 0
072CC021400 2739
072DD011400 3952
072DD021400 329
072EE001400 0
073 A011400 0.5500
073 A021400 0.4700
073 B001400 0.1300
073 C001400 0.0000
074 A001400 46
074 B001400 0
074 C001400 1000
074 D001400 82487
074 E001400 0
074 F001400 0
074 G001400 0
074 H001400 0
074 I001400 0
074 J001400 80
<PAGE> PAGE 50
074 K001400 0
074 L001400 1316
074 M001400 1
074 N001400 84930
074 O001400 967
074 P001400 6
074 Q001400 0
074 R011400 0
074 R021400 0
074 R031400 0
074 R041400 345
074 S001400 0
074 T001400 83612
074 U011400 6993
074 U021400 747
074 V011400 10.80
074 V021400 10.80
074 W001400 0.0000
074 X001400 1333
074 Y001400 53
075 A001400 0
075 B001400 84376
076 001400 0.00
028 A011500 366
028 A021500 275
028 A031500 0
028 A041500 2134
028 B011500 605
028 B021500 271
028 B031500 0
028 B041500 2208
028 C011500 372
028 C021500 264
028 C031500 0
028 C041500 1867
028 D011500 502
028 D021500 264
028 D031500 0
028 D041500 1697
028 E011500 351
028 E021500 265
028 E031500 0
028 E041500 1648
028 F011500 695
028 F021500 264
028 F031500 0
028 F041500 1677
028 G011500 2891
028 G021500 1603
028 G031500 0
028 G041500 11231
<PAGE> PAGE 51
028 H001500 2289
029 001500 Y
030 A001500 126
030 B001500 4.75
030 C001500 0.00
031 A001500 23
031 B001500 0
032 001500 103
033 001500 0
034 001500 Y
035 001500 26
036 A001500 N
036 B001500 0
042 A001500 0
042 B001500 0
042 C001500 28
042 D001500 72
042 E001500 0
042 F001500 0
042 G001500 0
042 H001500 0
043 001500 205
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
048 K021500 0.000
049 001500 N
050 001500 N
<PAGE> PAGE 52
051 001500 N
052 001500 N
053 A001500 Y
053 B001500 Y
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 1.7
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 97.3
062 P001500 0.0
062 Q001500 0.0
062 R001500 0.0
063 A001500 0
063 B001500 15.9
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 Y
070 F011500 N
070 F021500 N
070 G011500 Y
070 G021500 N
070 H011500 N
<PAGE> PAGE 53
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 20866
071 B001500 40387
071 C001500 142598
071 D001500 15
072 A001500 12
072 B001500 8517
072 C001500 0
072 D001500 0
072 E001500 0
072 F001500 802
072 G001500 21
072 H001500 0
072 I001500 184
072 J001500 55
072 K001500 11
072 L001500 18
072 M001500 17
072 N001500 0
072 O001500 0
072 P001500 0
072 Q001500 0
072 R001500 32
072 S001500 2
072 T001500 206
072 U001500 0
072 V001500 0
072 W001500 59
072 X001500 1407
072 Y001500 108
072 Z001500 7218
<PAGE> PAGE 54
072AA001500 0
072BB001500 504
072CC011500 6363
072CC021500 0
072DD011500 6905
072DD021500 313
072EE001500 0
073 A011500 0.5000
073 A021500 0.4200
073 B001500 0.0000
073 C001500 0.0000
074 A001500 32
074 B001500 0
074 C001500 2400
074 D001500 137595
074 E001500 0
074 F001500 0
074 G001500 0
074 H001500 0
074 I001500 0
074 J001500 14
074 K001500 0
074 L001500 2083
074 M001500 1
074 N001500 142125
074 O001500 0
074 P001500 11
074 Q001500 0
074 R011500 0
074 R021500 0
074 R031500 0
074 R041500 672
074 S001500 0
074 T001500 141442
074 U011500 13165
074 U021500 724
074 V011500 10.18
074 V021500 10.18
074 W001500 0.0000
074 X001500 2889
074 Y001500 0
075 A001500 0
075 B001500 146492
076 001500 0.00
028 A011700 1391
028 A021700 144
028 A031700 0
028 A041700 1520
028 B011700 818
028 B021700 143
028 B031700 0
<PAGE> PAGE 55
028 B041700 1072
028 C011700 9358
028 C021700 144
028 C031700 0
028 C041700 1388
028 D011700 1398
028 D021700 144
028 D031700 0
028 D041700 7073
028 E011700 576
028 E021700 138
028 E031700 0
028 E041700 3102
028 F011700 530
028 F021700 137
028 F031700 0
028 F041700 1678
028 G011700 14071
028 G021700 850
028 G031700 0
028 G041700 15833
028 H001700 11416
029 001700 Y
030 A001700 101
030 B001700 4.75
030 C001700 0.00
031 A001700 18
031 B001700 0
032 001700 83
033 001700 0
034 001700 Y
035 001700 41
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 127
044 001700 0
045 001700 Y
046 001700 N
047 001700 Y
048 001700 0.550
048 A011700 0
048 A021700 0.000
048 B011700 0
<PAGE> PAGE 56
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 Y
053 C001700 Y
055 A001700 Y
055 B001700 Y
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 1.0
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
062 N001700 0.0
062 O001700 98.8
062 P001700 0.0
<PAGE> PAGE 57
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 Y
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 13381
071 B001700 15884
071 C001700 96621
071 D001700 14
072 A001700 12
072 B001700 5529
072 C001700 0
072 D001700 0
072 E001700 0
<PAGE> PAGE 58
072 F001700 522
072 G001700 14
072 H001700 0
072 I001700 119
072 J001700 37
072 K001700 7
072 L001700 9
072 M001700 16
072 N001700 0
072 O001700 0
072 P001700 0
072 Q001700 0
072 R001700 30
072 S001700 5
072 T001700 126
072 U001700 0
072 V001700 0
072 W001700 48
072 X001700 933
072 Y001700 73
072 Z001700 4669
072AA001700 0
072BB001700 679
072CC011700 5126
072CC021700 0
072DD011700 4017
072DD021700 665
072EE001700 0
073 A011700 0.5000
073 A021700 0.4200
073 B001700 0.0000
073 C001700 0.0000
074 A001700 16
074 B001700 0
074 C001700 900
074 D001700 93320
074 E001700 0
074 F001700 0
074 G001700 0
074 H001700 0
074 I001700 0
074 J001700 0
074 K001700 0
074 L001700 1745
074 M001700 13
074 N001700 95994
074 O001700 0
074 P001700 7
074 Q001700 0
074 R011700 0
074 R021700 0
<PAGE> PAGE 59
074 R031700 0
074 R041700 1557
074 S001700 0
074 T001700 94430
074 U011700 7697
074 U021700 1656
074 V011700 10.10
074 V021700 10.09
074 W001700 0.0000
074 X001700 1581
074 Y001700 0
075 A001700 0
075 B001700 95374
076 001700 0.00
028 A011800 159
028 A021800 133
028 A031800 0
028 A041800 691
028 B011800 478
028 B021800 133
028 B031800 0
028 B041800 315
028 C011800 94
028 C021800 134
028 C031800 0
028 C041800 1041
028 D011800 314
028 D021800 133
028 D031800 0
028 D041800 1001
028 E011800 184
028 E021800 133
028 E031800 0
028 E041800 373
028 F011800 1175
028 F021800 136
028 F031800 0
028 F041800 741
028 G011800 2404
028 G021800 802
028 G031800 0
028 G041800 4162
028 H001800 2016
029 001800 Y
030 A001800 101
030 B001800 4.75
030 C001800 0.00
031 A001800 17
031 B001800 0
032 001800 84
033 001800 0
<PAGE> PAGE 60
034 001800 Y
035 001800 49
036 A001800 N
036 B001800 0
042 A001800 0
042 B001800 0
042 C001800 96
042 D001800 4
042 E001800 0
042 F001800 0
042 G001800 0
042 H001800 0
043 001800 85
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 Y
053 C001800 Y
055 A001800 N
055 B001800 N
056 001800 Y
057 001800 N
<PAGE> PAGE 61
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 1.4
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 0.0
062 M001800 0.0
062 N001800 0.0
062 O001800 98.2
062 P001800 0.0
062 Q001800 0.0
062 R001800 0.0
063 A001800 0
063 B001800 18.9
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 N
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
070 K021800 N
070 L011800 N
070 L021800 N
<PAGE> PAGE 62
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 13656
071 B001800 17245
071 C001800 75276
071 D001800 18
072 A001800 12
072 B001800 4481
072 C001800 0
072 D001800 0
072 E001800 0
072 F001800 422
072 G001800 11
072 H001800 0
072 I001800 97
072 J001800 29
072 K001800 4
072 L001800 8
072 M001800 17
072 N001800 0
072 O001800 0
072 P001800 0
072 Q001800 0
072 R001800 29
072 S001800 3
072 T001800 84
072 U001800 1
072 V001800 0
072 W001800 38
072 X001800 743
072 Y001800 59
072 Z001800 3797
072AA001800 1058
072BB001800 0
072CC011800 3159
072CC021800 0
072DD011800 3282
072DD021800 454
072EE001800 0
073 A011800 0.4800
073 A021800 0.4100
<PAGE> PAGE 63
073 B001800 0.0000
073 C001800 0.0000
074 A001800 72
074 B001800 0
074 C001800 1100
074 D001800 75373
074 E001800 0
074 F001800 0
074 G001800 0
074 H001800 0
074 I001800 0
074 J001800 0
074 K001800 0
074 L001800 1489
074 M001800 10
074 N001800 78044
074 O001800 1005
074 P001800 5
074 Q001800 0
074 R011800 0
074 R021800 0
074 R031800 0
074 R041800 255
074 S001800 0
074 T001800 76779
074 U011800 6685
074 U021800 1083
074 V011800 9.88
074 V021800 9.89
074 W001800 0.0000
074 X001800 1817
074 Y001800 0
075 A001800 0
075 B001800 77016
076 001800 0.00
028 A012100 823
028 A022100 82
028 A032100 0
028 A042100 866
028 B012100 680
028 B022100 85
028 B032100 0
028 B042100 376
028 C012100 891
028 C022100 88
028 C032100 0
028 C042100 575
028 D012100 539
028 D022100 80
028 D032100 0
028 D042100 1758
<PAGE> PAGE 64
028 E012100 638
028 E022100 83
028 E032100 0
028 E042100 693
028 F012100 820
028 F022100 82
028 F032100 0
028 F042100 631
028 G012100 4391
028 G022100 500
028 G032100 0
028 G042100 4899
028 H002100 2712
029 002100 Y
030 A002100 109
030 B002100 4.75
030 C002100 0.00
031 A002100 20
031 B002100 0
032 002100 89
033 002100 0
034 002100 Y
035 002100 26
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 176
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
048 E022100 0.000
048 F012100 0
048 F022100 0.000
<PAGE> PAGE 65
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 Y
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 1.5
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 97.1
062 P002100 0.0
062 Q002100 0.0
062 R002100 0.0
063 A002100 0
063 B002100 15.4
064 A002100 Y
064 B002100 N
070 A012100 Y
070 A022100 N
070 B012100 N
<PAGE> PAGE 66
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 11864
071 B002100 15264
071 C002100 38643
071 D002100 31
072 A002100 12
072 B002100 2201
072 C002100 0
072 D002100 0
072 E002100 0
072 F002100 219
072 G002100 6
072 H002100 0
072 I002100 50
072 J002100 20
072 K002100 5
072 L002100 6
072 M002100 17
072 N002100 0
<PAGE> PAGE 67
072 O002100 0
072 P002100 0
072 Q002100 0
072 R002100 30
072 S002100 3
072 T002100 174
072 U002100 1
072 V002100 0
072 W002100 37
072 X002100 568
072 Y002100 245
072 Z002100 1878
072AA002100 370
072BB002100 0
072CC012100 1974
072CC022100 0
072DD012100 912
072DD022100 972
072EE002100 0
073 A012100 0.5000
073 A022100 0.4200
073 B002100 0.0000
073 C002100 0.0000
074 A002100 38
074 B002100 0
074 C002100 600
074 D002100 38300
074 E002100 0
074 F002100 0
074 G002100 0
074 H002100 0
074 I002100 0
074 J002100 15
074 K002100 0
074 L002100 639
074 M002100 1
074 N002100 39593
074 O002100 0
074 P002100 5
074 Q002100 0
074 R012100 0
074 R022100 0
074 R032100 0
074 R042100 120
074 S002100 0
074 T002100 39468
074 U012100 1927
074 U022100 2089
074 V012100 9.82
074 V022100 9.84
074 W002100 0.0000
<PAGE> PAGE 68
074 X002100 1307
074 Y002100 0
075 A002100 0
075 B002100 39791
076 002100 0.00
028 A012200 3851
028 A022200 462
028 A032200 0
028 A042200 4771
028 B012200 3792
028 B022200 472
028 B032200 0
028 B042200 6760
028 C012200 6622
028 C022200 457
028 C032200 0
028 C042200 7652
028 D012200 5432
028 D022200 458
028 D032200 0
028 D042200 6523
028 E012200 5415
028 E022200 457
028 E032200 0
028 E042200 6387
028 F012200 5729
028 F022200 456
028 F032200 0
028 F042200 6080
028 G012200 30841
028 G022200 2762
028 G032200 0
028 G042200 38173
028 H002200 23406
029 002200 Y
030 A002200 426
030 B002200 4.75
030 C002200 0.00
031 A002200 46
031 B002200 0
032 002200 380
033 002200 0
034 002200 Y
035 002200 103
036 A002200 N
036 B002200 0
042 A002200 0
042 B002200 0
042 C002200 82
042 D002200 18
042 E002200 0
<PAGE> PAGE 69
042 F002200 0
042 G002200 0
042 H002200 0
043 002200 366
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
062 B002200 0.0
062 C002200 0.0
062 D002200 0.0
<PAGE> PAGE 70
062 E002200 0.7
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 96.2
062 P002200 0.0
062 Q002200 0.0
062 R002200 0.0
063 A002200 0
063 B002200 14.8
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 N
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
070 P012200 Y
070 P022200 N
070 Q012200 N
<PAGE> PAGE 71
070 Q022200 N
070 R012200 N
070 R022200 N
071 A002200 128109
071 B002200 142368
071 C002200 262392
071 D002200 49
072 A002200 12
072 B002200 15494
072 C002200 0
072 D002200 0
072 E002200 0
072 F002200 1492
072 G002200 38
072 H002200 0
072 I002200 341
072 J002200 99
072 K002200 19
072 L002200 25
072 M002200 17
072 N002200 0
072 O002200 0
072 P002200 0
072 Q002200 0
072 R002200 32
072 S002200 7
072 T002200 363
072 U002200 0
072 V002200 0
072 W002200 77
072 X002200 2510
072 Y002200 434
072 Z002200 13418
072AA002200 3074
072BB002200 0
072CC012200 12733
072CC022200 0
072DD012200 11527
072DD022200 1703
072EE002200 0
073 A012200 0.2900
073 A022200 0.2400
073 B002200 0.0000
073 C002200 0.0000
074 A002200 69
074 B002200 0
074 C002200 1800
074 D002200 260487
074 E002200 0
074 F002200 0
074 G002200 0
<PAGE> PAGE 72
074 H002200 0
074 I002200 0
074 J002200 4528
074 K002200 0
074 L002200 4806
074 M002200 3
074 N002200 271693
074 O002200 0
074 P002200 19
074 Q002200 0
074 R012200 0
074 R022200 0
074 R032200 0
074 R042200 1067
074 S002200 0
074 T002200 270607
074 U012200 38343
074 U022200 7549
074 V012200 5.80
074 V022200 5.80
074 W002200 0.0000
074 X002200 4429
074 Y002200 0
075 A002200 0
075 B002200 271817
076 002200 0.00
028 A012300 11571
028 A022300 846
028 A032300 0
028 A042300 14434
028 B012300 7662
028 B022300 834
028 B032300 0
028 B042300 8833
028 C012300 9712
028 C022300 834
028 C032300 0
028 C042300 12402
028 D012300 13533
028 D022300 830
028 D032300 0
028 D042300 15356
028 E012300 10214
028 E022300 1249
028 E032300 0
028 E042300 14429
028 F012300 10741
028 F022300 822
028 F032300 0
028 F042300 14439
028 G012300 63433
<PAGE> PAGE 73
028 G022300 5415
028 G032300 0
028 G042300 79893
028 H002300 53140
029 002300 Y
030 A002300 158
030 B002300 4.75
030 C002300 0.00
031 A002300 27
031 B002300 0
032 002300 131
033 002300 0
034 002300 Y
035 002300 262
036 A002300 N
036 B002300 0
042 A002300 0
042 B002300 0
042 C002300 57
042 D002300 43
042 E002300 0
042 F002300 0
042 G002300 0
042 H002300 0
043 002300 2430
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
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
<PAGE> PAGE 74
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 Y
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 0.0
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 99.6
062 P002300 0.0
062 Q002300 0.0
062 R002300 0.0
063 A002300 0
063 B002300 17.4
064 A002300 Y
064 B002300 N
070 A012300 Y
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
<PAGE> PAGE 75
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 88626
071 B002300 122885
071 C002300 387877
071 D002300 23
072 A002300 12
072 B002300 26017
072 C002300 0
072 D002300 0
072 E002300 0
072 F002300 2841
072 G002300 56
072 H002300 0
072 I002300 486
072 J002300 138
072 K002300 44
072 L002300 42
072 M002300 42
072 N002300 0
072 O002300 0
072 P002300 0
072 Q002300 0
072 R002300 35
072 S002300 7
072 T002300 2616
072 U002300 0
072 V002300 0
072 W002300 143
<PAGE> PAGE 76
072 X002300 6450
072 Y002300 50
072 Z002300 19617
072AA002300 4109
072BB002300 0
072CC012300 17549
072CC022300 0
072DD012300 9236
072DD022300 9293
072EE002300 0
073 A012300 0.4800
073 A022300 0.4100
073 B002300 0.0000
073 C002300 0.0000
074 A002300 3
074 B002300 0
074 C002300 0
074 D002300 381599
074 E002300 0
074 F002300 0
074 G002300 0
074 H002300 0
074 I002300 0
074 J002300 1366
074 K002300 0
074 L002300 7814
074 M002300 4
074 N002300 390786
074 O002300 4476
074 P002300 43
074 Q002300 0
074 R012300 0
074 R022300 0
074 R032300 0
074 R042300 3070
074 S002300 0
074 T002300 383197
074 U012300 21031
074 U022300 19150
074 V012300 8.99
074 V022300 9.00
074 W002300 0.0000
074 X002300 10975
074 Y002300 182
075 A002300 0
075 B002300 390660
076 002300 0.00
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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 76841879
<INVESTMENTS-AT-VALUE> 83486951
<RECEIVABLES> 1395867
<ASSETS-OTHER> 752
<OTHER-ITEMS-ASSETS> 46157
<TOTAL-ASSETS> 84929727
<PAYABLE-FOR-SECURITIES> 967430
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 350297
<TOTAL-LIABILITIES> 1317727
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76550925
<SHARES-COMMON-STOCK> 6993187
<SHARES-COMMON-PRIOR> 7339789
<ACCUMULATED-NII-CURRENT> 187188
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 226200
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 6647687
<NET-ASSETS> 83612000
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5185811
<OTHER-INCOME> 0
<EXPENSES-NET> (926398)
<NET-INVESTMENT-INCOME> 4259413
<REALIZED-GAINS-CURRENT> 804239
<APPREC-INCREASE-CURRENT> 2739036
<NET-CHANGE-FROM-OPS> 7802688
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3952098)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (875615)
<NUMBER-OF-SHARES-SOLD> 247827
<NUMBER-OF-SHARES-REDEEMED> (780883)
<SHARES-REINVESTED> 186454
<NET-CHANGE-IN-ASSETS> (597188)
<ACCUMULATED-NII-PRIOR> 179772
<ACCUMULATED-GAINS-PRIOR> 411611
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 462104
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 994281
<AVERAGE-NET-ASSETS> 84376236
<PER-SHARE-NAV-BEGIN> 10.48
<PER-SHARE-NII> 0.55
<PER-SHARE-GAIN-APPREC> 0.45
<PER-SHARE-DIVIDEND> (0.68)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.80
<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> 142
<NAME> MFS ALABAMA 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> MAR-31-1998
<INVESTMENTS-AT-COST> 76841879
<INVESTMENTS-AT-VALUE> 83486951
<RECEIVABLES> 1395867
<ASSETS-OTHER> 752
<OTHER-ITEMS-ASSETS> 46157
<TOTAL-ASSETS> 84929727
<PAYABLE-FOR-SECURITIES> 967430
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 350297
<TOTAL-LIABILITIES> 1317727
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76550925
<SHARES-COMMON-STOCK> 747341
<SHARES-COMMON-PRIOR> 694527
<ACCUMULATED-NII-CURRENT> 187188
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 226200
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 6647687
<NET-ASSETS> 83612000
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5185811
<OTHER-INCOME> 0
<EXPENSES-NET> (926398)
<NET-INVESTMENT-INCOME> 4259413
<REALIZED-GAINS-CURRENT> 804239
<APPREC-INCREASE-CURRENT> 2739036
<NET-CHANGE-FROM-OPS> 7802688
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (328801)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (85133)
<NUMBER-OF-SHARES-SOLD> 131755
<NUMBER-OF-SHARES-REDEEMED> (96019)
<SHARES-REINVESTED> 17078
<NET-CHANGE-IN-ASSETS> (597188)
<ACCUMULATED-NII-PRIOR> 179772
<ACCUMULATED-GAINS-PRIOR> 411611
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 462104
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 994281
<AVERAGE-NET-ASSETS> 84376236
<PER-SHARE-NAV-BEGIN> 10.48
<PER-SHARE-NII> 0.47
<PER-SHARE-GAIN-APPREC> 0.45
<PER-SHARE-DIVIDEND> (0.60)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.80
<EXPENSE-RATIO> 1.79
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 128594066
<INVESTMENTS-AT-VALUE> 139994646
<RECEIVABLES> 2097668
<ASSETS-OTHER> 1402
<OTHER-ITEMS-ASSETS> 31674
<TOTAL-ASSETS> 142125390
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 683065
<TOTAL-LIABILITIES> 683065
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137493426
<SHARES-COMMON-STOCK> 13164767
<SHARES-COMMON-PRIOR> 14835381
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (159330)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7292351)
<ACCUM-APPREC-OR-DEPREC> 11400580
<NET-ASSETS> 141442325
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8516813
<OTHER-INCOME> 0
<EXPENSES-NET> (1299273)
<NET-INVESTMENT-INCOME> 7217540
<REALIZED-GAINS-CURRENT> 504739
<APPREC-INCREASE-CURRENT> 6362830
<NET-CHANGE-FROM-OPS> 14085109
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6904570)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (21863)
<NUMBER-OF-SHARES-SOLD> 551662
<NUMBER-OF-SHARES-REDEEMED> (2535244)
<SHARES-REINVESTED> 312968
<NET-CHANGE-IN-ASSETS> (10368431)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (139974)
<OVERDIST-NET-GAINS-PRIOR> (7793592)
<GROSS-ADVISORY-FEES> 802329
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1407234
<AVERAGE-NET-ASSETS> 146491549
<PER-SHARE-NAV-BEGIN> 9.72
<PER-SHARE-NII> 0.50
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> (0.50)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.18
<EXPENSE-RATIO> 0.85
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 128594066
<INVESTMENTS-AT-VALUE> 139994646
<RECEIVABLES> 2097668
<ASSETS-OTHER> 1402
<OTHER-ITEMS-ASSETS> 31674
<TOTAL-ASSETS> 142125390
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 683065
<TOTAL-LIABILITIES> 683065
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 137493426
<SHARES-COMMON-STOCK> 723825
<SHARES-COMMON-PRIOR> 776303
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (159330)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7292351)
<ACCUM-APPREC-OR-DEPREC> 11400580
<NET-ASSETS> 141442325
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8516813
<OTHER-INCOME> 0
<EXPENSES-NET> (1299273)
<NET-INVESTMENT-INCOME> 7217540
<REALIZED-GAINS-CURRENT> 504739
<APPREC-INCREASE-CURRENT> 6362830
<NET-CHANGE-FROM-OPS> 14085109
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (312970)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (991)
<NUMBER-OF-SHARES-SOLD> 98992
<NUMBER-OF-SHARES-REDEEMED> (165933)
<SHARES-REINVESTED> 14463
<NET-CHANGE-IN-ASSETS> (10368431)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (139974)
<OVERDIST-NET-GAINS-PRIOR> (7793592)
<GROSS-ADVISORY-FEES> 802329
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1407234
<AVERAGE-NET-ASSETS> 146491549
<PER-SHARE-NAV-BEGIN> 9.72
<PER-SHARE-NII> 0.42
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> (0.42)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.18
<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> MAR-31-1998
<INVESTMENTS-AT-COST> 238723866
<INVESTMENTS-AT-VALUE> 262287381
<RECEIVABLES> 9334803
<ASSETS-OTHER> 68664
<OTHER-ITEMS-ASSETS> 2539
<TOTAL-ASSETS> 271693387
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1086768
<TOTAL-LIABILITIES> 1086768
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 255829583
<SHARES-COMMON-STOCK> 38343376
<SHARES-COMMON-PRIOR> 42498099
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (298253)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8488226)
<ACCUM-APPREC-OR-DEPREC> 23563515
<NET-ASSETS> 270606619
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15493585
<OTHER-INCOME> 0
<EXPENSES-NET> (2076060)
<NET-INVESTMENT-INCOME> 13417525
<REALIZED-GAINS-CURRENT> 3073681
<APPREC-INCREASE-CURRENT> 12733420
<NET-CHANGE-FROM-OPS> 29224626
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (11527300)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 6423462
<NUMBER-OF-SHARES-REDEEMED> (11403505)
<SHARES-REINVESTED> 825320
<NET-CHANGE-IN-ASSETS> (2555055)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (378009)
<OVERDIST-NET-GAINS-PRIOR> (11509098)
<GROSS-ADVISORY-FEES> 1492065
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2509925
<AVERAGE-NET-ASSETS> 271817109
<PER-SHARE-NAV-BEGIN> 5.47
<PER-SHARE-NII> 0.29
<PER-SHARE-GAIN-APPREC> 0.33
<PER-SHARE-DIVIDEND> (0.29)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.80
<EXPENSE-RATIO> 0.64
<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> MAR-31-1998
<INVESTMENTS-AT-COST> 238723866
<INVESTMENTS-AT-VALUE> 262287381
<RECEIVABLES> 9334803
<ASSETS-OTHER> 68664
<OTHER-ITEMS-ASSETS> 2539
<TOTAL-ASSETS> 271693387
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1086768
<TOTAL-LIABILITIES> 1086768
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 255829583
<SHARES-COMMON-STOCK> 7548679
<SHARES-COMMON-PRIOR> 6703433
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (298253)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8488226)
<ACCUM-APPREC-OR-DEPREC> 23563515
<NET-ASSETS> 270606619
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15493585
<OTHER-INCOME> 0
<EXPENSES-NET> (2076060)
<NET-INVESTMENT-INCOME> 13417525
<REALIZED-GAINS-CURRENT> 3073681
<APPREC-INCREASE-CURRENT> 12733420
<NET-CHANGE-FROM-OPS> 29224626
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1703179)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1926315
<NUMBER-OF-SHARES-REDEEMED> (1220206)
<SHARES-REINVESTED> 139137
<NET-CHANGE-IN-ASSETS> (2555055)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (378009)
<OVERDIST-NET-GAINS-PRIOR> (11509098)
<GROSS-ADVISORY-FEES> 1492065
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2509925
<AVERAGE-NET-ASSETS> 271817109
<PER-SHARE-NAV-BEGIN> 5.47
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.33
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.80
<EXPENSE-RATIO> 1.44
<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> MAR-31-1998
<INVESTMENTS-AT-COST> 238723866
<INVESTMENTS-AT-VALUE> 262287381
<RECEIVABLES> 9334803
<ASSETS-OTHER> 68664
<OTHER-ITEMS-ASSETS> 2539
<TOTAL-ASSETS> 271693387
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1086768
<TOTAL-LIABILITIES> 1086768
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 255829583
<SHARES-COMMON-STOCK> 756445
<SHARES-COMMON-PRIOR> 703318
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (298253)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8488226)
<ACCUM-APPREC-OR-DEPREC> 23563515
<NET-ASSETS> 270606619
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15493585
<OTHER-INCOME> 0
<EXPENSES-NET> (2076060)
<NET-INVESTMENT-INCOME> 13417525
<REALIZED-GAINS-CURRENT> 3073681
<APPREC-INCREASE-CURRENT> 12733420
<NET-CHANGE-FROM-OPS> 29224626
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (160099)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 353378
<NUMBER-OF-SHARES-REDEEMED> (316084)
<SHARES-REINVESTED> 15833
<NET-CHANGE-IN-ASSETS> (2555055)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (378009)
<OVERDIST-NET-GAINS-PRIOR> (11509098)
<GROSS-ADVISORY-FEES> 1492065
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2509925
<AVERAGE-NET-ASSETS> 271817109
<PER-SHARE-NAV-BEGIN> 5.48
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> 0.33
<PER-SHARE-DIVIDEND> (0.23)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.81
<EXPENSE-RATIO> 1.64
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 85460484
<INVESTMENTS-AT-VALUE> 94220165
<RECEIVABLES> 1744360
<ASSETS-OTHER> 13195
<OTHER-ITEMS-ASSETS> 16094
<TOTAL-ASSETS> 95993814
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1563689
<TOTAL-LIABILITIES> 1563689
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 93656651
<SHARES-COMMON-STOCK> 7696941
<SHARES-COMMON-PRIOR> 8335775
<ACCUMULATED-NII-CURRENT> 9992
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7996199)
<ACCUM-APPREC-OR-DEPREC> 8759681
<NET-ASSETS> 94430125
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5528740
<OTHER-INCOME> 0
<EXPENSES-NET> (859570)
<NET-INVESTMENT-INCOME> 4669170
<REALIZED-GAINS-CURRENT> (678935)
<APPREC-INCREASE-CURRENT> 5126079
<NET-CHANGE-FROM-OPS> 9116314
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (4017401)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1398429
<NUMBER-OF-SHARES-REDEEMED> (2187892)
<SHARES-REINVESTED> 150629
<NET-CHANGE-IN-ASSETS> (612456)
<ACCUMULATED-NII-PRIOR> 22856
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (7317264)
<GROSS-ADVISORY-FEES> 522340
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 933191
<AVERAGE-NET-ASSETS> 95374247
<PER-SHARE-NAV-BEGIN> 9.64
<PER-SHARE-NII> 0.50
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> (0.50)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.10
<EXPENSE-RATIO> 0.78
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 85460484
<INVESTMENTS-AT-VALUE> 94220165
<RECEIVABLES> 1744360
<ASSETS-OTHER> 13195
<OTHER-ITEMS-ASSETS> 16094
<TOTAL-ASSETS> 95993814
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1563689
<TOTAL-LIABILITIES> 1563689
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 93656651
<SHARES-COMMON-STOCK> 1656208
<SHARES-COMMON-PRIOR> 1525437
<ACCUMULATED-NII-CURRENT> 9992
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (7996199)
<ACCUM-APPREC-OR-DEPREC> 8759681
<NET-ASSETS> 94430125
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5528740
<OTHER-INCOME> 0
<EXPENSES-NET> (859570)
<NET-INVESTMENT-INCOME> 4669170
<REALIZED-GAINS-CURRENT> (678935)
<APPREC-INCREASE-CURRENT> 5126079
<NET-CHANGE-FROM-OPS> 9116314
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (664633)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 413387
<NUMBER-OF-SHARES-REDEEMED> (304299)
<SHARES-REINVESTED> 21683
<NET-CHANGE-IN-ASSETS> (612456)
<ACCUMULATED-NII-PRIOR> 22856
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (7317264)
<GROSS-ADVISORY-FEES> 522340
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 933191
<AVERAGE-NET-ASSETS> 95374247
<PER-SHARE-NAV-BEGIN> 9.64
<PER-SHARE-NII> 0.42
<PER-SHARE-GAIN-APPREC> 0.45
<PER-SHARE-DIVIDEND> (0.42)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.09
<EXPENSE-RATIO> 1.58
<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> MAR-31-1998
<INVESTMENTS-AT-COST> 62232969
<INVESTMENTS-AT-VALUE> 69302198
<RECEIVABLES> 1212581
<ASSETS-OTHER> 138303
<OTHER-ITEMS-ASSETS> 638
<TOTAL-ASSETS> 70653720
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 237044
<TOTAL-LIABILITIES> 237044
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 66248925
<SHARES-COMMON-STOCK> 5439735
<SHARES-COMMON-PRIOR> 5765143
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (30382)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2871096)
<ACCUM-APPREC-OR-DEPREC> 7069229
<NET-ASSETS> 70416676
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4369894
<OTHER-INCOME> 0
<EXPENSES-NET> (793164)
<NET-INVESTMENT-INCOME> 3576730
<REALIZED-GAINS-CURRENT> 557951
<APPREC-INCREASE-CURRENT> 3175485
<NET-CHANGE-FROM-OPS> 7310166
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3095247)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 285259
<NUMBER-OF-SHARES-REDEEMED> (760856)
<SHARES-REINVESTED> 150189
<NET-CHANGE-IN-ASSETS> 579052
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (41448)
<OVERDIST-NET-GAINS-PRIOR> (3429047)
<GROSS-ADVISORY-FEES> 390188
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 881402
<AVERAGE-NET-ASSETS> 71104761
<PER-SHARE-NAV-BEGIN> 10.38
<PER-SHARE-NII> 0.56
<PER-SHARE-GAIN-APPREC> 0.56
<PER-SHARE-DIVIDEND> (0.55)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.95
<EXPENSE-RATIO> 1.03
<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> MAR-31-1998
<INVESTMENTS-AT-COST> 62232969
<INVESTMENTS-AT-VALUE> 69302198
<RECEIVABLES> 1212581
<ASSETS-OTHER> 138303
<OTHER-ITEMS-ASSETS> 638
<TOTAL-ASSETS> 70653720
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 237044
<TOTAL-LIABILITIES> 237044
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 66248925
<SHARES-COMMON-STOCK> 992582
<SHARES-COMMON-PRIOR> 962443
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (30382)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2871096)
<ACCUM-APPREC-OR-DEPREC> 7069229
<NET-ASSETS> 70416676
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4369894
<OTHER-INCOME> 0
<EXPENSES-NET> (793164)
<NET-INVESTMENT-INCOME> 3576730
<REALIZED-GAINS-CURRENT> 557951
<APPREC-INCREASE-CURRENT> 3175485
<NET-CHANGE-FROM-OPS> 7310166
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (470417)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 228131
<NUMBER-OF-SHARES-REDEEMED> (217945)
<SHARES-REINVESTED> 19953
<NET-CHANGE-IN-ASSETS> 579052
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (41448)
<OVERDIST-NET-GAINS-PRIOR> (3429047)
<GROSS-ADVISORY-FEES> 390188
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 881402
<AVERAGE-NET-ASSETS> 71104761
<PER-SHARE-NAV-BEGIN> 10.38
<PER-SHARE-NII> 0.48
<PER-SHARE-GAIN-APPREC> 0.56
<PER-SHARE-DIVIDEND> (0.47)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.95
<EXPENSE-RATIO> 1.77
<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> MAR-31-1998
<INVESTMENTS-AT-COST> 230846978
<INVESTMENTS-AT-VALUE> 252098826
<RECEIVABLES> 5288085
<ASSETS-OTHER> 2288
<OTHER-ITEMS-ASSETS> 41184
<TOTAL-ASSETS> 257430383
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 818933
<TOTAL-LIABILITIES> 818933
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 239548702
<SHARES-COMMON-STOCK> 20970023
<SHARES-COMMON-PRIOR> 21628872
<ACCUMULATED-NII-CURRENT> (610630)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (3578470)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 21251848
<NET-ASSETS> 256611450
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15826875
<OTHER-INCOME> 0
<EXPENSES-NET> (2764927)
<NET-INVESTMENT-INCOME> 13061948
<REALIZED-GAINS-CURRENT> 1678366
<APPREC-INCREASE-CURRENT> 9433538
<NET-CHANGE-FROM-OPS> 24173852
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (12306601)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (39763)
<NUMBER-OF-SHARES-SOLD> 5739681
<NUMBER-OF-SHARES-REDEEMED> (6917199)
<SHARES-REINVESTED> 518669
<NET-CHANGE-IN-ASSETS> (2555055)
<ACCUMULATED-NII-PRIOR> (607456)
<ACCUMULATED-GAINS-PRIOR> (5217806)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1396410
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3053923
<AVERAGE-NET-ASSETS> 254471512
<PER-SHARE-NAV-BEGIN> 10.86
<PER-SHARE-NII> 0.58
<PER-SHARE-GAIN-APPREC> 0.48
<PER-SHARE-DIVIDEND> (0.58)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.34
<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> 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> MAR-31-1998
<INVESTMENTS-AT-COST> 230846978
<INVESTMENTS-AT-VALUE> 252098826
<RECEIVABLES> 5288085
<ASSETS-OTHER> 2288
<OTHER-ITEMS-ASSETS> 41184
<TOTAL-ASSETS> 257430383
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 818933
<TOTAL-LIABILITIES> 818933
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 239548702
<SHARES-COMMON-STOCK> 1652019
<SHARES-COMMON-PRIOR> 1399249
<ACCUMULATED-NII-CURRENT> (610630)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (3578470)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 21251848
<NET-ASSETS> 256611450
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15826875
<OTHER-INCOME> 0
<EXPENSES-NET> (2764927)
<NET-INVESTMENT-INCOME> 13061948
<REALIZED-GAINS-CURRENT> 1678366
<APPREC-INCREASE-CURRENT> 9433538
<NET-CHANGE-FROM-OPS> 24173852
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (755347)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (2441)
<NUMBER-OF-SHARES-SOLD> 412561
<NUMBER-OF-SHARES-REDEEMED> (199566)
<SHARES-REINVESTED> 39775
<NET-CHANGE-IN-ASSETS> (2555055)
<ACCUMULATED-NII-PRIOR> (607456)
<ACCUMULATED-GAINS-PRIOR> (5217806)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1396410
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3053923
<AVERAGE-NET-ASSETS> 254471512
<PER-SHARE-NAV-BEGIN> 10.87
<PER-SHARE-NII> 0.51
<PER-SHARE-GAIN-APPREC> 0.48
<PER-SHARE-DIVIDEND> (0.51)
<PER-SHARE-DISTRIBUTIONS> 0
<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> 011
<NAME> MFS MARYLAND 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> MAR-31-1998
<INVESTMENTS-AT-COST> 134875737
<INVESTMENTS-AT-VALUE> 147892791
<RECEIVABLES> 3699240
<ASSETS-OTHER> 1302
<OTHER-ITEMS-ASSETS> 37901
<TOTAL-ASSETS> 151631234
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3991619
<TOTAL-LIABILITIES> 3991619
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 139230730
<SHARES-COMMON-STOCK> 10985563
<SHARES-COMMON-PRIOR> 11612305
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (201957)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (4406212)
<ACCUM-APPREC-OR-DEPREC> 13017054
<NET-ASSETS> 147639615
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8570505
<OTHER-INCOME> 0
<EXPENSES-NET> (1686478)
<NET-INVESTMENT-INCOME> 6884027
<REALIZED-GAINS-CURRENT> 1097797
<APPREC-INCREASE-CURRENT> 6667042
<NET-CHANGE-FROM-OPS> 14648866
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6063937)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (111652)
<NUMBER-OF-SHARES-SOLD> 556578
<NUMBER-OF-SHARES-REDEEMED> (1468800)
<SHARES-REINVESTED> 285480
<NET-CHANGE-IN-ASSETS> 3856053
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (137662)
<OVERDIST-NET-GAINS-PRIOR> (5441552)
<GROSS-ADVISORY-FEES> 803559
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1867199
<AVERAGE-NET-ASSETS> 146439029
<PER-SHARE-NAV-BEGIN> 10.89
<PER-SHARE-NII> 0.54
<PER-SHARE-GAIN-APPREC> 0.59
<PER-SHARE-DIVIDEND> (0.55)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.47
<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> 012
<NAME> MFS MARYLAND 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> MAR-31-1998
<INVESTMENTS-AT-COST> 134875737
<INVESTMENTS-AT-VALUE> 147892791
<RECEIVABLES> 3699240
<ASSETS-OTHER> 1302
<OTHER-ITEMS-ASSETS> 37901
<TOTAL-ASSETS> 151631234
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3991619
<TOTAL-LIABILITIES> 3991619
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 139230730
<SHARES-COMMON-STOCK> 1885910
<SHARES-COMMON-PRIOR> 1597546
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (201957)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (4406212)
<ACCUM-APPREC-OR-DEPREC> 13017054
<NET-ASSETS> 147639615
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8570505
<OTHER-INCOME> 0
<EXPENSES-NET> (1686478)
<NET-INVESTMENT-INCOME> 6884027
<REALIZED-GAINS-CURRENT> 1097797
<APPREC-INCREASE-CURRENT> 6667042
<NET-CHANGE-FROM-OPS> 14648866
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (820090)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (15100)
<NUMBER-OF-SHARES-SOLD> 511961
<NUMBER-OF-SHARES-REDEEMED> (265179)
<SHARES-REINVESTED> 41582
<NET-CHANGE-IN-ASSETS> 3856053
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (137662)
<OVERDIST-NET-GAINS-PRIOR> (5441552)
<GROSS-ADVISORY-FEES> 803559
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1867199
<AVERAGE-NET-ASSETS> 146439029
<PER-SHARE-NAV-BEGIN> 10.88
<PER-SHARE-NII> 0.47
<PER-SHARE-GAIN-APPREC> 0.60
<PER-SHARE-DIVIDEND> (0.48)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.47
<EXPENSE-RATIO> 1.74
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 336534023
<INVESTMENTS-AT-VALUE> 381598850
<RECEIVABLES> 9180010
<ASSETS-OTHER> 3690
<OTHER-ITEMS-ASSETS> 3310
<TOTAL-ASSETS> 390785860
<PAYABLE-FOR-SECURITIES> 4476195
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3112541
<TOTAL-LIABILITIES> 7588736
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 348320614
<SHARES-COMMON-STOCK> 21031460
<SHARES-COMMON-PRIOR> 17881552
<ACCUMULATED-NII-CURRENT> 314288
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10465843)
<ACCUM-APPREC-OR-DEPREC> 45028065
<NET-ASSETS> 383197124
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 26016757
<OTHER-INCOME> 0
<EXPENSES-NET> 6399489
<NET-INVESTMENT-INCOME> 19617268
<REALIZED-GAINS-CURRENT> 4108957
<APPREC-INCREASE-CURRENT> 17549457
<NET-CHANGE-FROM-OPS> 41275682
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9235834)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12070927
<NUMBER-OF-SHARES-REDEEMED> (9471742)
<SHARES-REINVESTED> 550723
<NET-CHANGE-IN-ASSETS> (14138792)
<ACCUMULATED-NII-PRIOR> 153445
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (14583208)
<GROSS-ADVISORY-FEES> 2841328
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6449792
<AVERAGE-NET-ASSETS> 390660432
<PER-SHARE-NAV-BEGIN> 8.50
<PER-SHARE-NII> 0.48
<PER-SHARE-GAIN-APPREC> 0.49
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.48)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 8.99
<EXPENSE-RATIO> 1.23
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 336534023
<INVESTMENTS-AT-VALUE> 381598850
<RECEIVABLES> 9180010
<ASSETS-OTHER> 3690
<OTHER-ITEMS-ASSETS> 3310
<TOTAL-ASSETS> 390785860
<PAYABLE-FOR-SECURITIES> 4476195
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3112541
<TOTAL-LIABILITIES> 7588736
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 348320614
<SHARES-COMMON-STOCK> 19150440
<SHARES-COMMON-PRIOR> 26567509
<ACCUMULATED-NII-CURRENT> 314288
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10465843)
<ACCUM-APPREC-OR-DEPREC> 45028065
<NET-ASSETS> 383197124
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 26016757
<OTHER-INCOME> 0
<EXPENSES-NET> 6399489
<NET-INVESTMENT-INCOME> 19617268
<REALIZED-GAINS-CURRENT> 4108957
<APPREC-INCREASE-CURRENT> 17549457
<NET-CHANGE-FROM-OPS> 41275682
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9293144)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1479892
<NUMBER-OF-SHARES-REDEEMED> (9482528)
<SHARES-REINVESTED> 585567
<NET-CHANGE-IN-ASSETS> (14138792)
<ACCUMULATED-NII-PRIOR> 153445
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (14583208)
<GROSS-ADVISORY-FEES> 2841328
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6449792
<AVERAGE-NET-ASSETS> 390660432
<PER-SHARE-NAV-BEGIN> 8.51
<PER-SHARE-NII> 0.42
<PER-SHARE-GAIN-APPREC> 0.48
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.41)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.00
<EXPENSE-RATIO> 1.98
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 336534023
<INVESTMENTS-AT-VALUE> 381598850
<RECEIVABLES> 9180010
<ASSETS-OTHER> 3690
<OTHER-ITEMS-ASSETS> 3310
<TOTAL-ASSETS> 390785860
<PAYABLE-FOR-SECURITIES> 4476195
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3112541
<TOTAL-LIABILITIES> 7588736
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 348320614
<SHARES-COMMON-STOCK> 2420576
<SHARES-COMMON-PRIOR> 2249229
<ACCUMULATED-NII-CURRENT> 314288
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10465843)
<ACCUM-APPREC-OR-DEPREC> 45028065
<NET-ASSETS> 383197124
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 26016757
<OTHER-INCOME> 0
<EXPENSES-NET> 6399489
<NET-INVESTMENT-INCOME> 19617268
<REALIZED-GAINS-CURRENT> 4108957
<APPREC-INCREASE-CURRENT> 17549457
<NET-CHANGE-FROM-OPS> 41275682
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (919039)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1245893
<NUMBER-OF-SHARES-REDEEMED> (1164337)
<SHARES-REINVESTED> 89791
<NET-CHANGE-IN-ASSETS> (14138792)
<ACCUMULATED-NII-PRIOR> 153445
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (14583208)
<GROSS-ADVISORY-FEES> 2841328
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6449792
<AVERAGE-NET-ASSETS> 390660432
<PER-SHARE-NAV-BEGIN> 8.52
<PER-SHARE-NII> 0.41
<PER-SHARE-GAIN-APPREC> 0.49
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.41)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.01
<EXPENSE-RATIO> 1.98
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 181
<NAME> MFS MISSISSIPPI 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> MAR-31-1998
<INVESTMENTS-AT-COST> 70650677
<INVESTMENTS-AT-VALUE> 76472976
<RECEIVABLES> 1488888
<ASSETS-OTHER> 10159
<OTHER-ITEMS-ASSETS> 72151
<TOTAL-ASSETS> 78044174
<PAYABLE-FOR-SECURITIES> 1004833
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 260525
<TOTAL-LIABILITIES> 1265358
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 74142820
<SHARES-COMMON-STOCK> 6685063
<SHARES-COMMON-PRIOR> 7125487
<ACCUMULATED-NII-CURRENT> 108514
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3294817)
<ACCUM-APPREC-OR-DEPREC> 5822299
<NET-ASSETS> 76778816
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4481362
<OTHER-INCOME> 0
<EXPENSES-NET> (683884)
<NET-INVESTMENT-INCOME> 3797478
<REALIZED-GAINS-CURRENT> 1058128
<APPREC-INCREASE-CURRENT> 3159311
<NET-CHANGE-FROM-OPS> 8014917
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3282482)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 340467
<NUMBER-OF-SHARES-REDEEMED> (930443)
<SHARES-REINVESTED> 149552
<NET-CHANGE-IN-ASSETS> (864510)
<ACCUMULATED-NII-PRIOR> 36215
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (4342088)
<GROSS-ADVISORY-FEES> 421798
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 742671
<AVERAGE-NET-ASSETS> 77016446
<PER-SHARE-NAV-BEGIN> 9.35
<PER-SHARE-NII> 0.49
<PER-SHARE-GAIN-APPREC> 0.52
<PER-SHARE-DIVIDEND> (0.48)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.88
<EXPENSE-RATIO> 0.78
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 182
<NAME> MFS MISSISSIPPI 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> MAR-31-1998
<INVESTMENTS-AT-COST> 70650677
<INVESTMENTS-AT-VALUE> 76472976
<RECEIVABLES> 1488888
<ASSETS-OTHER> 10159
<OTHER-ITEMS-ASSETS> 72151
<TOTAL-ASSETS> 78044174
<PAYABLE-FOR-SECURITIES> 1004833
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 260525
<TOTAL-LIABILITIES> 1265358
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 74142820
<SHARES-COMMON-STOCK> 1083446
<SHARES-COMMON-PRIOR> 1176682
<ACCUMULATED-NII-CURRENT> 108514
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3294817)
<ACCUM-APPREC-OR-DEPREC> 5822299
<NET-ASSETS> 76778816
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4481362
<OTHER-INCOME> 0
<EXPENSES-NET> (683884)
<NET-INVESTMENT-INCOME> 3797478
<REALIZED-GAINS-CURRENT> 1058128
<APPREC-INCREASE-CURRENT> 3159311
<NET-CHANGE-FROM-OPS> 8014917
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (453554)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 103611
<NUMBER-OF-SHARES-REDEEMED> (212704)
<SHARES-REINVESTED> 15857
<NET-CHANGE-IN-ASSETS> (864510)
<ACCUMULATED-NII-PRIOR> 36215
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (4342088)
<GROSS-ADVISORY-FEES> 421798
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 742671
<AVERAGE-NET-ASSETS> 77016446
<PER-SHARE-NAV-BEGIN> 9.36
<PER-SHARE-NII> 0.41
<PER-SHARE-GAIN-APPREC> 0.53
<PER-SHARE-DIVIDEND> (0.41)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.89
<EXPENSE-RATIO> 1.56
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 021
<NAME> MFS NORTH CAROLINA 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> MAR-31-1998
<INVESTMENTS-AT-COST> 394602732
<INVESTMENTS-AT-VALUE> 431478839
<RECEIVABLES> 9653374
<ASSETS-OTHER> 3878
<OTHER-ITEMS-ASSETS> 59458
<TOTAL-ASSETS> 441195549
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8220004
<TOTAL-LIABILITIES> 8220004
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 402613729
<SHARES-COMMON-STOCK> 31316107
<SHARES-COMMON-PRIOR> 32631174
<ACCUMULATED-NII-CURRENT> (573058)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (5941233)
<ACCUM-APPREC-OR-DEPREC> 36876107
<NET-ASSETS> 432975545
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 25514906
<OTHER-INCOME> 0
<EXPENSES-NET> (4692936)
<NET-INVESTMENT-INCOME> 20821970
<REALIZED-GAINS-CURRENT> 4101800
<APPREC-INCREASE-CURRENT> 17339006
<NET-CHANGE-FROM-OPS> 42262776
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (18623468)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3556873
<NUMBER-OF-SHARES-REDEEMED> (5765393)
<SHARES-REINVESTED> 893453
<NET-CHANGE-IN-ASSETS> 9040205
<ACCUMULATED-NII-PRIOR> (714721)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (9998905)
<GROSS-ADVISORY-FEES> 2357113
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5170930
<AVERAGE-NET-ASSETS> 429543702
<PER-SHARE-NAV-BEGIN> 11.56
<PER-SHARE-NII> 0.59
<PER-SHARE-GAIN-APPREC> 0.59
<PER-SHARE-DIVIDEND> (0.59)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.15
<EXPENSE-RATIO> 1.03
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 022
<NAME> MFS NORTH CAROLINA 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> MAR-31-1998
<INVESTMENTS-AT-COST> 394602732
<INVESTMENTS-AT-VALUE> 431478839
<RECEIVABLES> 9653374
<ASSETS-OTHER> 3878
<OTHER-ITEMS-ASSETS> 59458
<TOTAL-ASSETS> 441195549
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8220004
<TOTAL-LIABILITIES> 8220004
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 402613729
<SHARES-COMMON-STOCK> 3641772
<SHARES-COMMON-PRIOR> 3379267
<ACCUMULATED-NII-CURRENT> (573058)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (5941233)
<ACCUM-APPREC-OR-DEPREC> 36876107
<NET-ASSETS> 432975545
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 25514906
<OTHER-INCOME> 0
<EXPENSES-NET> (4692936)
<NET-INVESTMENT-INCOME> 20821970
<REALIZED-GAINS-CURRENT> 4101800
<APPREC-INCREASE-CURRENT> 17339006
<NET-CHANGE-FROM-OPS> 42262776
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1800152)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 686096
<NUMBER-OF-SHARES-REDEEMED> (516454)
<SHARES-REINVESTED> 92863
<NET-CHANGE-IN-ASSETS> 9040205
<ACCUMULATED-NII-PRIOR> (714721)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (9998905)
<GROSS-ADVISORY-FEES> 2357113
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5170930
<AVERAGE-NET-ASSETS> 429543702
<PER-SHARE-NAV-BEGIN> 11.55
<PER-SHARE-NII> 0.51
<PER-SHARE-GAIN-APPREC> 0.60
<PER-SHARE-DIVIDEND> (0.51)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.15
<EXPENSE-RATIO> 1.68
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 023
<NAME> MFS NORTH CAROLINA 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> MAR-31-1998
<INVESTMENTS-AT-COST> 394602732
<INVESTMENTS-AT-VALUE> 431478839
<RECEIVABLES> 9653374
<ASSETS-OTHER> 3878
<OTHER-ITEMS-ASSETS> 59458
<TOTAL-ASSETS> 441195549
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8220004
<TOTAL-LIABILITIES> 8220004
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 402613729
<SHARES-COMMON-STOCK> 670448
<SHARES-COMMON-PRIOR> 674343
<ACCUMULATED-NII-CURRENT> (573058)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (5941233)
<ACCUM-APPREC-OR-DEPREC> 36876107
<NET-ASSETS> 432975545
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 25514906
<OTHER-INCOME> 0
<EXPENSES-NET> (4692936)
<NET-INVESTMENT-INCOME> 20821970
<REALIZED-GAINS-CURRENT> 4101800
<APPREC-INCREASE-CURRENT> 17339006
<NET-CHANGE-FROM-OPS> 42262776
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (300815)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 224139
<NUMBER-OF-SHARES-REDEEMED> (245421)
<SHARES-REINVESTED> 17386
<NET-CHANGE-IN-ASSETS> 9040205
<ACCUMULATED-NII-PRIOR> (714721)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (9998905)
<GROSS-ADVISORY-FEES> 2357113
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5170930
<AVERAGE-NET-ASSETS> 429543702
<PER-SHARE-NAV-BEGIN> 11.55
<PER-SHARE-NII> 0.51
<PER-SHARE-GAIN-APPREC> 0.60
<PER-SHARE-DIVIDEND> (0.51)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.15
<EXPENSE-RATIO> 1.68
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 111
<NAME> MFS NEW YORK 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> MAR-31-1998
<INVESTMENTS-AT-COST> 129330414
<INVESTMENTS-AT-VALUE> 143922172
<RECEIVABLES> 3781919
<ASSETS-OTHER> 1357
<OTHER-ITEMS-ASSETS> 51695
<TOTAL-ASSETS> 147757143
<PAYABLE-FOR-SECURITIES> 1273169
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 489855
<TOTAL-LIABILITIES> 1763024
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 134184952
<SHARES-COMMON-STOCK> 10602605
<SHARES-COMMON-PRIOR> 11475221
<ACCUMULATED-NII-CURRENT> 9547
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2792138)
<ACCUM-APPREC-OR-DEPREC> 14591758
<NET-ASSETS> 145994119
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 9083284
<OTHER-INCOME> 0
<EXPENSES-NET> (1700833)
<NET-INVESTMENT-INCOME> 7382451
<REALIZED-GAINS-CURRENT> 557413
<APPREC-INCREASE-CURRENT> 8128220
<NET-CHANGE-FROM-OPS> 16068084
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5984379)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2478239
<NUMBER-OF-SHARES-REDEEMED> (3665414)
<SHARES-REINVESTED> 314559
<NET-CHANGE-IN-ASSETS> (2317663)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (3280303)
<OVERDISTRIB-NII-PRIOR> (338090)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 807334
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1817908
<AVERAGE-NET-ASSETS> 147411072
<PER-SHARE-NAV-BEGIN> 10.60
<PER-SHARE-NII> 0.57
<PER-SHARE-GAIN-APPREC> 0.64
<PER-SHARE-DIVIDEND> (0.55)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.26
<EXPENSE-RATIO> 1.03
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000751656
<NAME> MFS MUNICIPAL SERIES TRUST
<SERIES>
<NUMBER> 112
<NAME> MFS NEW YORK 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> MAR-31-1998
<INVESTMENTS-AT-COST> 129330414
<INVESTMENTS-AT-VALUE> 143922172
<RECEIVABLES> 3781919
<ASSETS-OTHER> 1357
<OTHER-ITEMS-ASSETS> 57695
<TOTAL-ASSETS> 147757143
<PAYABLE-FOR-SECURITIES> 1273169
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 489855
<TOTAL-LIABILITIES> 1763024
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 134184952
<SHARES-COMMON-STOCK> 2364869
<SHARES-COMMON-PRIOR> 2522769
<ACCUMULATED-NII-CURRENT> 9547
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (2792138)
<ACCUM-APPREC-OR-DEPREC> 14591758
<NET-ASSETS> 145994119
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 9083284
<OTHER-INCOME> 0
<EXPENSES-NET> (1700833)
<NET-INVESTMENT-INCOME> 7382451
<REALIZED-GAINS-CURRENT> 557413
<APPREC-INCREASE-CURRENT> 8128220
<NET-CHANGE-FROM-OPS> 16068084
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1119683)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 312251
<NUMBER-OF-SHARES-REDEEMED> (525604)
<SHARES-REINVESTED> 55453
<NET-CHANGE-IN-ASSETS> (2317663)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (3280303)
<OVERDISTRIB-NII-PRIOR> (338090)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 807334
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1817908
<AVERAGE-NET-ASSETS> 147411072
<PER-SHARE-NAV-BEGIN> 10.59
<PER-SHARE-NII> 0.49
<PER-SHARE-GAIN-APPREC> 0.64
<PER-SHARE-DIVIDEND> (0.46)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.26
<EXPENSE-RATIO> 1.78
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 36532031
<INVESTMENTS-AT-VALUE> 38900179
<RECEIVABLES> 654081
<ASSETS-OTHER> 596
<OTHER-ITEMS-ASSETS> 38411
<TOTAL-ASSETS> 39593267
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 124877
<TOTAL-LIABILITIES> 124877
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 38723045
<SHARES-COMMON-STOCK> 1926901
<SHARES-COMMON-PRIOR> 1828105
<ACCUMULATED-NII-CURRENT> 36446
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1659249)
<ACCUM-APPREC-OR-DEPREC> 2368148
<NET-ASSETS> 39468390
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2201078
<OTHER-INCOME> 0
<EXPENSES-NET> (323564)
<NET-INVESTMENT-INCOME> 1877514
<REALIZED-GAINS-CURRENT> 370355
<APPREC-INCREASE-CURRENT> 1973736
<NET-CHANGE-FROM-OPS> 4221605
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (912228)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 393781
<NUMBER-OF-SHARES-REDEEMED> (353201)
<SHARES-REINVESTED> 58216
<NET-CHANGE-IN-ASSETS> (2363000)
<ACCUMULATED-NII-PRIOR> 16202
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (2003122)
<GROSS-ADVISORY-FEES> 219296
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 568116
<AVERAGE-NET-ASSETS> 39790942
<PER-SHARE-NAV-BEGIN> 9.26
<PER-SHARE-NII> 0.50
<PER-SHARE-GAIN-APPREC> 0.56
<PER-SHARE-DIVIDEND> (0.50)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.82
<EXPENSE-RATIO> 0.40
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 36532031
<INVESTMENTS-AT-VALUE> 38900179
<RECEIVABLES> 654081
<ASSETS-OTHER> 596
<OTHER-ITEMS-ASSETS> 38411
<TOTAL-ASSETS> 39593267
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 124877
<TOTAL-LIABILITIES> 124877
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 38723045
<SHARES-COMMON-STOCK> 2088544
<SHARES-COMMON-PRIOR> 2682075
<ACCUMULATED-NII-CURRENT> 36446
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1659249)
<ACCUM-APPREC-OR-DEPREC> 2368148
<NET-ASSETS> 39468390
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2201078
<OTHER-INCOME> 0
<EXPENSES-NET> (323564)
<NET-INVESTMENT-INCOME> 1877514
<REALIZED-GAINS-CURRENT> 370355
<APPREC-INCREASE-CURRENT> 1973736
<NET-CHANGE-FROM-OPS> 4221605
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (971524)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 357012
<NUMBER-OF-SHARES-REDEEMED> (998388)
<SHARES-REINVESTED> 47845
<NET-CHANGE-IN-ASSETS> (2363000)
<ACCUMULATED-NII-PRIOR> 16202
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (2003122)
<GROSS-ADVISORY-FEES> 219296
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 568116
<AVERAGE-NET-ASSETS> 39790942
<PER-SHARE-NAV-BEGIN> 9.28
<PER-SHARE-NII> 0.42
<PER-SHARE-GAIN-APPREC> 0.56
<PER-SHARE-DIVIDEND> (0.42)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.84
<EXPENSE-RATIO> 1.19
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 159850405
<INVESTMENTS-AT-VALUE> 174628785
<RECEIVABLES> 3734447
<ASSETS-OTHER> 1558
<OTHER-ITEMS-ASSETS> 94412
<TOTAL-ASSETS> 178459202
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1552748
<TOTAL-LIABILITIES> 1552748
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 163365761
<SHARES-COMMON-STOCK> 11886734
<SHARES-COMMON-PRIOR> 12533883
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (144164)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1093523)
<ACCUM-APPREC-OR-DEPREC> 14778380
<NET-ASSETS> 176906454
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10350714
<OTHER-INCOME> 0
<EXPENSES-NET> (2000031)
<NET-INVESTMENT-INCOME> 8350683
<REALIZED-GAINS-CURRENT> 2305563
<APPREC-INCREASE-CURRENT> 6822281
<NET-CHANGE-FROM-OPS> 17478527
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (7292328)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (10662)
<NUMBER-OF-SHARES-SOLD> 721996
<NUMBER-OF-SHARES-REDEEMED> (1681644)
<SHARES-REINVESTED> 312499
<NET-CHANGE-IN-ASSETS> 6127069
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (221229)
<OVERDIST-NET-GAINS-PRIOR> (3319812)
<GROSS-ADVISORY-FEES> 962150
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2191474
<AVERAGE-NET-ASSETS> 175343405
<PER-SHARE-NAV-BEGIN> 11.88
<PER-SHARE-NII> 0.60
<PER-SHARE-GAIN-APPREC> 0.64
<PER-SHARE-DIVIDEND> (0.60)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.52
<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> 032
<NAME> MFS SOUTH CAROLINA 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> MAR-31-1998
<INVESTMENTS-AT-COST> 159850405
<INVESTMENTS-AT-VALUE> 174628785
<RECEIVABLES> 3734447
<ASSETS-OTHER> 1558
<OTHER-ITEMS-ASSETS> 94412
<TOTAL-ASSETS> 178459202
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1552748
<TOTAL-LIABILITIES> 1552748
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 163365761
<SHARES-COMMON-STOCK> 2243721
<SHARES-COMMON-PRIOR> 1841229
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (144164)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1093523)
<ACCUM-APPREC-OR-DEPREC> 14778380
<NET-ASSETS> 176906454
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10350714
<OTHER-INCOME> 0
<EXPENSES-NET> (2000031)
<NET-INVESTMENT-INCOME> 8350683
<REALIZED-GAINS-CURRENT> 2305563
<APPREC-INCREASE-CURRENT> 6822281
<NET-CHANGE-FROM-OPS> 17478527
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1058355)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (1547)
<NUMBER-OF-SHARES-SOLD> 662495
<NUMBER-OF-SHARES-REDEEMED> (308387)
<SHARES-REINVESTED> 48384
<NET-CHANGE-IN-ASSETS> 6127069
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (221229)
<OVERDIST-NET-GAINS-PRIOR> (3319812)
<GROSS-ADVISORY-FEES> 962150
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2191474
<AVERAGE-NET-ASSETS> 175343405
<PER-SHARE-NAV-BEGIN> 11.88
<PER-SHARE-NII> 0.52
<PER-SHARE-GAIN-APPREC> 0.64
<PER-SHARE-DIVIDEND> (0.52)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.52
<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> 131
<NAME> MFS TENNESSEE 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> MAR-31-1998
<INVESTMENTS-AT-COST> 114947643
<INVESTMENTS-AT-VALUE> 125433289
<RECEIVABLES> 2006782
<ASSETS-OTHER> 1102
<OTHER-ITEMS-ASSETS> 84940
<TOTAL-ASSETS> 127526113
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 457074
<TOTAL-LIABILITIES> 457074
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 116400051
<SHARES-COMMON-STOCK> 9974593
<SHARES-COMMON-PRIOR> 10469429
<ACCUMULATED-NII-CURRENT> 7636
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 175706
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 10485646
<NET-ASSETS> 127069039
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7587609
<OTHER-INCOME> 0
<EXPENSES-NET> (1434072)
<NET-INVESTMENT-INCOME> 6153537
<REALIZED-GAINS-CURRENT> 1327353
<APPREC-INCREASE-CURRENT> 5784067
<NET-CHANGE-FROM-OPS> 13264957
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5444688)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (29444)
<NUMBER-OF-SHARES-SOLD> 612818
<NUMBER-OF-SHARES-REDEEMED> (1355686)
<SHARES-REINVESTED> 248032
<NET-CHANGE-IN-ASSETS> 4633222
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1094486)
<OVERDISTRIB-NII-PRIOR> (16248)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 691203
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1579189
<AVERAGE-NET-ASSETS> 125964947
<PER-SHARE-NAV-BEGIN> 10.32
<PER-SHARE-NII> 0.53
<PER-SHARE-GAIN-APPREC> 0.60
<PER-SHARE-DIVIDEND> (0.54)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.91
<EXPENSE-RATIO> 1.07
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 114947643
<INVESTMENTS-AT-VALUE> 125433289
<RECEIVABLES> 2006782
<ASSETS-OTHER> 1102
<OTHER-ITEMS-ASSETS> 84940
<TOTAL-ASSETS> 127526113
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 457074
<TOTAL-LIABILITIES> 457074
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 116400051
<SHARES-COMMON-STOCK> 1668278
<SHARES-COMMON-PRIOR> 1400227
<ACCUMULATED-NII-CURRENT> 7636
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 175706
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 10485646
<NET-ASSETS> 127069039
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7587609
<OTHER-INCOME> 0
<EXPENSES-NET> (1434072)
<NET-INVESTMENT-INCOME> 6153537
<REALIZED-GAINS-CURRENT> 1327353
<APPREC-INCREASE-CURRENT> 5784067
<NET-CHANGE-FROM-OPS> 13264957
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (708845)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (3833)
<NUMBER-OF-SHARES-SOLD> 465445
<NUMBER-OF-SHARES-REDEEMED> (230905)
<SHARES-REINVESTED> 33511
<NET-CHANGE-IN-ASSETS> (4633222)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1094486)
<OVERDISTRIB-NII-PRIOR> (16248)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 691203
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1579189
<AVERAGE-NET-ASSETS> 125964947
<PER-SHARE-NAV-BEGIN> 10.31
<PER-SHARE-NII> 0.46
<PER-SHARE-GAIN-APPREC> 0.61
<PER-SHARE-DIVIDEND> (0.47)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.91
<EXPENSE-RATIO> 1.72
<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 BOND FUND CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 373795241
<INVESTMENTS-AT-VALUE> 404113447
<RECEIVABLES> 6214321
<ASSETS-OTHER> 3778
<OTHER-ITEMS-ASSETS> 73891
<TOTAL-ASSETS> 410405437
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1396827
<TOTAL-LIABILITIES> 1396827
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 386569024
<SHARES-COMMON-STOCK> 32127096
<SHARES-COMMON-PRIOR> 34278440
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1185067)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (6693553)
<ACCUM-APPREC-OR-DEPREC> 30318206
<NET-ASSETS> 409008610
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 24651103
<OTHER-INCOME> 0
<EXPENSES-NET> (4384395)
<NET-INVESTMENT-INCOME> 20266708
<REALIZED-GAINS-CURRENT> 6279954
<APPREC-INCREASE-CURRENT> 13748696
<NET-CHANGE-FROM-OPS> 40295358
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (18762689)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (62418)
<NUMBER-OF-SHARES-SOLD> 3291980
<NUMBER-OF-SHARES-REDEEMED> (6251014)
<SHARES-REINVESTED> 807690
<NET-CHANGE-IN-ASSETS> (3925722)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (1257215)
<OVERDIST-NET-GAINS-PRIOR> (12833937)
<GROSS-ADVISORY-FEES> 2261655
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4886325
<AVERAGE-NET-ASSETS> 412130673
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> 0.57
<PER-SHARE-GAIN-APPREC> 0.55
<PER-SHARE-DIVIDEND> (0.57)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.61
<EXPENSE-RATIO> 1.03
<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 BOND FUND CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 373795241
<INVESTMENTS-AT-VALUE> 404113447
<RECEIVABLES> 6214321
<ASSETS-OTHER> 3778
<OTHER-ITEMS-ASSETS> 73891
<TOTAL-ASSETS> 410405437
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1396827
<TOTAL-LIABILITIES> 1396827
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 386569024
<SHARES-COMMON-STOCK> 2834673
<SHARES-COMMON-PRIOR> 2764192
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1185067)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (6693553)
<ACCUM-APPREC-OR-DEPREC> 30318206
<NET-ASSETS> 409008610
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 24651103
<OTHER-INCOME> 0
<EXPENSES-NET> (4384395)
<NET-INVESTMENT-INCOME> 20266708
<REALIZED-GAINS-CURRENT> 6279954
<APPREC-INCREASE-CURRENT> 13748696
<NET-CHANGE-FROM-OPS> 40295358
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1362739)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (4534)
<NUMBER-OF-SHARES-SOLD> 409256
<NUMBER-OF-SHARES-REDEEMED> (390082)
<SHARES-REINVESTED> 51307
<NET-CHANGE-IN-ASSETS> (3925722)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (1257215)
<OVERDIST-NET-GAINS-PRIOR> (12833937)
<GROSS-ADVISORY-FEES> 2261655
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4886325
<AVERAGE-NET-ASSETS> 412130673
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> 0.49
<PER-SHARE-GAIN-APPREC> 0.56
<PER-SHARE-DIVIDEND> (0.50)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.61
<EXPENSE-RATIO> 1.68
<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 BOND FUND CLASS C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 373795241
<INVESTMENTS-AT-VALUE> 404113447
<RECEIVABLES> 6214321
<ASSETS-OTHER> 3778
<OTHER-ITEMS-ASSETS> 73891
<TOTAL-ASSETS> 410405437
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1396827
<TOTAL-LIABILITIES> 1396827
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 386569024
<SHARES-COMMON-STOCK> 265551
<SHARES-COMMON-PRIOR> 287703
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (1185067)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (6693553)
<ACCUM-APPREC-OR-DEPREC> 30318206
<NET-ASSETS> 409008610
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 24651103
<OTHER-INCOME> 0
<EXPENSES-NET> (4384395)
<NET-INVESTMENT-INCOME> 20266708
<REALIZED-GAINS-CURRENT> 6279954
<APPREC-INCREASE-CURRENT> 13748696
<NET-CHANGE-FROM-OPS> 40295358
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (141280)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (470)
<NUMBER-OF-SHARES-SOLD> 90611
<NUMBER-OF-SHARES-REDEEMED> (121878)
<SHARES-REINVESTED> 9115
<NET-CHANGE-IN-ASSETS> (3925722)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (1257215)
<OVERDIST-NET-GAINS-PRIOR> (12833937)
<GROSS-ADVISORY-FEES> 2261655
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4886325
<AVERAGE-NET-ASSETS> 412130673
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> 0.49
<PER-SHARE-GAIN-APPREC> 0.56
<PER-SHARE-DIVIDEND> (0.50)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.61
<EXPENSE-RATIO> 1.68
<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> YEAR
<FISCAL-YEAR-END> MAR-31-1998
<PERIOD-START> APR-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 130441456
<INVESTMENTS-AT-VALUE> 143317068
<RECEIVABLES> 2598492
<ASSETS-OTHER> 1289
<OTHER-ITEMS-ASSETS> 53961
<TOTAL-ASSETS> 145970810
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 496933
<TOTAL-LIABILITIES> 496933
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 136357971
<SHARES-COMMON-STOCK> 11045275
<SHARES-COMMON-PRIOR> 11150306
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (505444)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3254262)
<ACCUM-APPREC-OR-DEPREC> 12875612
<NET-ASSETS> 145473877
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8731857
<OTHER-INCOME> 0
<EXPENSES-NET> (1658928)
<NET-INVESTMENT-INCOME> 7072929
<REALIZED-GAINS-CURRENT> 345141
<APPREC-INCREASE-CURRENT> 5401673
<NET-CHANGE-FROM-OPS> 12819743
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6433739)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (68917)
<NUMBER-OF-SHARES-SOLD> 627745
<NUMBER-OF-SHARES-REDEEMED> (1029077)
<SHARES-REINVESTED> 296301
<NET-CHANGE-IN-ASSETS> 5780170
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (429680)
<OVERDIST-NET-GAINS-PRIOR> (3599403)
<GROSS-ADVISORY-FEES> 788060
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1771255
<AVERAGE-NET-ASSETS> 143896054
<PER-SHARE-NAV-BEGIN> 11.31
<PER-SHARE-NII> 0.58
<PER-SHARE-GAIN-APPREC> 0.47
<PER-SHARE-DIVIDEND> (0.59)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.77
<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> 052
<NAME> MFS WEST VIRGINIA 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> MAR-31-1998
<INVESTMENTS-AT-COST> 130441456
<INVESTMENTS-AT-VALUE> 143317068
<RECEIVABLES> 2598492
<ASSETS-OTHER> 1289
<OTHER-ITEMS-ASSETS> 53961
<TOTAL-ASSETS> 145970810
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 496933
<TOTAL-LIABILITIES> 496933
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 136357971
<SHARES-COMMON-STOCK> 1315043
<SHARES-COMMON-PRIOR> 1201777
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (505444)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (3254262)
<ACCUM-APPREC-OR-DEPREC> 12875612
<NET-ASSETS> 145473877
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 8731857
<OTHER-INCOME> 0
<EXPENSES-NET> (1658928)
<NET-INVESTMENT-INCOME> 7072929
<REALIZED-GAINS-CURRENT> 345141
<APPREC-INCREASE-CURRENT> 5401673
<NET-CHANGE-FROM-OPS> 12819743
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (639190)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> (6847)
<NUMBER-OF-SHARES-SOLD> 215995
<NUMBER-OF-SHARES-REDEEMED> (137784)
<SHARES-REINVESTED> 35055
<NET-CHANGE-IN-ASSETS> 5780170
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (429680)
<OVERDIST-NET-GAINS-PRIOR> (3599403)
<GROSS-ADVISORY-FEES> 788060
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1771255
<AVERAGE-NET-ASSETS> 143896054
<PER-SHARE-NAV-BEGIN> 11.31
<PER-SHARE-NII> 0.51
<PER-SHARE-GAIN-APPREC> 0.46
<PER-SHARE-DIVIDEND> (0.51)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.77
<EXPENSE-RATIO> 1.75
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>