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<PAGE> PAGE 7
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<PAGE> PAGE 10
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<PAGE> PAGE 14
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<PAGE> PAGE 15
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<PAGE> PAGE 17
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012 A000501 CHASE MANHATTAN BANK
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012 C030501 10003
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<PAGE> PAGE 21
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<PAGE> PAGE 22
048 A020500 0.500
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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SIGNATURE STEPHEN D. FOY
TITLE V.P.& CONTROLLER
<TABLE> <S> <C>
<ARTICLE> 6
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This schedule contains Summary Financial Information extracted from the Form
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</LEGEND>
<SERIES>
<NUMBER> 1
<NAME> NUVEEN FLAGSHIP ALL-AMERICAN MUNICIPAL BOND FUND A
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<TABLE> <S> <C>
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This schedule contains Summary Financial Information extracted from the Form
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</LEGEND>
<SERIES>
<NUMBER> 2
<NAME> NUVEEN FLAGSHIP ALL-AMERICAN MUNICIPAL BOND FUND B
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<S> <C>
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
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references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 3
<NAME> NUVEEN FLAGSHIP ALL-AMERICAN MUNICIPAL BOND FUND C
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<S> <C>
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<FISCAL-YEAR-END> APR-30-1999
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
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references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 4
<NAME> NUVEEN FLAGSHIP ALL-AMERICAN MUNICIPAL BOND FUND R
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<S> <C>
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<EXPENSE-RATIO> .63
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the
Form N-SAR and the financial statements and is qualified in its entirety
by references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 011
<NAME> NUVEEN MUNICIPAL BOND FUND CLASS A
<MULTIPLIER> 1,000
<S> <C>
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<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-1-1998
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the
Form N-SAR and the financial statements and is qualified in its entirety
by references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 012
<NAME> NUVEEN MUNICIPAL BOND FUND CLASS B
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<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the
Form N-SAR and the financial statements and is qualified in its entirety
by references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 013
<NAME> NUVEEN MUNICIPAL BOND FUND CLASS C
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<S> <C>
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<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2689637
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<PER-SHARE-NII> .20
<PER-SHARE-GAIN-APPREC> .22
<PER-SHARE-DIVIDEND> (.20)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.66
<EXPENSE-RATIO> 1.34
<AVG-DEBT-OUTSTANDING> 0.00
<AVG-DEBT-PER-SHARE> 0.00
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the
Form N-SAR and the financial statements and is qualified in its entirety
by references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 014
<NAME> NUVEEN MUNICIPAL BOND FUND CLASS R
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-1-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 2658032
<INVESTMENTS-AT-VALUE> 2944751
<RECEIVABLES> 62732
<ASSETS-OTHER> 1167
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 3008650
<PAYABLE-FOR-SECURITIES> 12445
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 11498
<TOTAL-LIABILITIES> 23943
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2689637
<SHARES-COMMON-STOCK> 296019
<SHARES-COMMON-PRIOR> 297869
<ACCUMULATED-NII-CURRENT> 1014
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 286718
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7338
<NET-ASSETS> 2684136
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 81585
<OTHER-INCOME> 0
<EXPENSES-NET> 8979
<NET-INVESTMENT-INCOME> 72606
<REALIZED-GAINS-CURRENT> 6047
<APPREC-INCREASE-CURRENT> 59477
<NET-CHANGE-FROM-OPS> 138130
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 114
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1709
<NUMBER-OF-SHARES-REDEEMED> (3498)
<SHARES-REINVESTED> 1067
<NET-CHANGE-IN-ASSETS> (5792)
<ACCUMULATED-NII-PRIOR> 532
<ACCUMULATED-GAINS-PRIOR> 1291
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 6723
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8979
<AVERAGE-NET-ASSETS> 2851661
<PER-SHARE-NAV-BEGIN> 9.46
<PER-SHARE-NII> .24
<PER-SHARE-GAIN-APPREC> .21
<PER-SHARE-DIVIDEND> (.23)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.68
<EXPENSE-RATIO> .59
<AVG-DEBT-OUTSTANDING> 0.00
<AVG-DEBT-PER-SHARE> 0.00
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 51
<NAME> INTERMEDIATE MUNI BOND FUND - CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 58140
<INVESTMENTS-AT-VALUE> 62165
<RECEIVABLES> 1386
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 63551
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 731
<TOTAL-LIABILITIES> 731
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 57887
<SHARES-COMMON-STOCK> 4761
<SHARES-COMMON-PRIOR> 3892
<ACCUMULATED-NII-CURRENT> (24)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 265
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 4692
<NET-ASSETS> 62820
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1378
<OTHER-INCOME> 0
<EXPENSES-NET> 245
<NET-INVESTMENT-INCOME> 1133
<REALIZED-GAINS-CURRENT> 122
<APPREC-INCREASE-CURRENT> 1264
<NET-CHANGE-FROM-OPS> 1386
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1049
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1331
<NUMBER-OF-SHARES-REDEEMED> 506
<SHARES-REINVESTED> 43
<NET-CHANGE-IN-ASSETS> 16345
<ACCUMULATED-NII-PRIOR> 11
<ACCUMULATED-GAINS-PRIOR> 143
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 224
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 478
<AVERAGE-NET-ASSETS> 51693
<PER-SHARE-NAV-BEGIN> 10.47
<PER-SHARE-NII> .52
<PER-SHARE-GAIN-APPREC> .41
<PER-SHARE-DIVIDEND> (.52)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.88
<EXPENSE-RATIO> .79
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 52
<NAME> INTERMEDIATE MUNI BOND FUND - CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 58140
<INVESTMENTS-AT-VALUE> 62165
<RECEIVABLES> 1386
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 63551
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 731
<TOTAL-LIABILITIES> 731
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 57887
<SHARES-COMMON-STOCK> 791
<SHARES-COMMON-PRIOR> 325
<ACCUMULATED-NII-CURRENT> (24)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 265
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 4692
<NET-ASSETS> 62820
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1378
<OTHER-INCOME> 0
<EXPENSES-NET> 245
<NET-INVESTMENT-INCOME> 1133
<REALIZED-GAINS-CURRENT> 122
<APPREC-INCREASE-CURRENT> 1264
<NET-CHANGE-FROM-OPS> 1386
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 104
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 494
<NUMBER-OF-SHARES-REDEEMED> 32
<SHARES-REINVESTED> 4
<NET-CHANGE-IN-ASSETS> 16345
<ACCUMULATED-NII-PRIOR> 11
<ACCUMULATED-GAINS-PRIOR> 143
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 224
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 478
<AVERAGE-NET-ASSETS> 51693
<PER-SHARE-NAV-BEGIN> 10.47
<PER-SHARE-NII> .46
<PER-SHARE-GAIN-APPREC> .42
<PER-SHARE-DIVIDEND> (.46)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.89
<EXPENSE-RATIO> 1.34
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 53
<NAME> INTERMEDIATE MUNI BOND FUND - CLASS R
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 58140
<INVESTMENTS-AT-VALUE> 62165
<RECEIVABLES> 1386
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 63551
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 731
<TOTAL-LIABILITIES> 731
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 57887
<SHARES-COMMON-STOCK> 66
<SHARES-COMMON-PRIOR> 55
<ACCUMULATED-NII-CURRENT> (24)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 265
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 4692
<NET-ASSETS> 62820
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1378
<OTHER-INCOME> 0
<EXPENSES-NET> 245
<NET-INVESTMENT-INCOME> 1133
<REALIZED-GAINS-CURRENT> 122
<APPREC-INCREASE-CURRENT> 1264
<NET-CHANGE-FROM-OPS> 1386
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 15
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 21
<NUMBER-OF-SHARES-REDEEMED> 43
<SHARES-REINVESTED> 13
<NET-CHANGE-IN-ASSETS> 16345
<ACCUMULATED-NII-PRIOR> 11
<ACCUMULATED-GAINS-PRIOR> 143
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 224
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 478
<AVERAGE-NET-ASSETS> 51693
<PER-SHARE-NAV-BEGIN> 10.45
<PER-SHARE-NII> .54
<PER-SHARE-GAIN-APPREC> .41
<PER-SHARE-DIVIDEND> (.54)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.86
<EXPENSE-RATIO> .59
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the financial statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 041
<NAME> LIMITED TERM MUNICIPAL CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> APR-30-1998
<INVESTMENTS-AT-COST> 449002
<INVESTMENTS-AT-VALUE> 464607
<RECEIVABLES> 8827
<ASSETS-OTHER> 2349
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 475783
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2996
<TOTAL-LIABILITIES> 2996
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 460206
<SHARES-COMMON-STOCK> 40573
<SHARES-COMMON-PRIOR> 40110
<ACCUMULATED-NII-CURRENT> 991
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4014)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 15604
<NET-ASSETS> 472787
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 25361
<OTHER-INCOME> 0
<EXPENSES-NET> 3649
<NET-INVESTMENT-INCOME> 21712
<REALIZED-GAINS-CURRENT> 1183
<APPREC-INCREASE-CURRENT> 6804
<NET-CHANGE-FROM-OPS> 29699
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 20496
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7703
<NUMBER-OF-SHARES-REDEEMED> (8423)
<SHARES-REINVESTED> 1182
<NET-CHANGE-IN-ASSETS> 23795
<ACCUMULATED-NII-PRIOR> 1015
<ACCUMULATED-GAINS-PRIOR> (5198)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2018
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3649
<AVERAGE-NET-ASSETS> 435405
<PER-SHARE-NAV-BEGIN> 10.61
<PER-SHARE-NII> 0.51
<PER-SHARE-GAIN-APPREC> 0.19
<PER-SHARE-DIVIDEND> (0.51)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.80
<EXPENSE-RATIO> 0.77
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the financial statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 042
<NAME> FLAGSHIP LIMITED TERM MUNICIPAL CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> APR-30-1998
<INVESTMENTS-AT-COST> 449002
<INVESTMENTS-AT-VALUE> 464607
<RECEIVABLES> 8827
<ASSETS-OTHER> 2349
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 475783
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2996
<TOTAL-LIABILITIES> 2996
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 460206
<SHARES-COMMON-STOCK> 3147
<SHARES-COMMON-PRIOR> 2222
<ACCUMULATED-NII-CURRENT> 991
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4014)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 15604
<NET-ASSETS> 472787
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 25361
<OTHER-INCOME> 0
<EXPENSES-NET> 3649
<NET-INVESTMENT-INCOME> 21712
<REALIZED-GAINS-CURRENT> 1183
<APPREC-INCREASE-CURRENT> 6804
<NET-CHANGE-FROM-OPS> 29699
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1227
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1703
<NUMBER-OF-SHARES-REDEEMED> (865)
<SHARES-REINVESTED> 87
<NET-CHANGE-IN-ASSETS> 23795
<ACCUMULATED-NII-PRIOR> 1015
<ACCUMULATED-GAINS-PRIOR> (5198)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2018
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3649
<AVERAGE-NET-ASSETS> 28178
<PER-SHARE-NAV-BEGIN> 10.60
<PER-SHARE-NII> 0.47
<PER-SHARE-GAIN-APPREC> 0.19
<PER-SHARE-DIVIDEND> (0.47)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.79
<EXPENSE-RATIO> 1.12
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the financial statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 043
<NAME> LIMITED TERM MUNICIPAL CLASS R
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> APR-30-1998
<INVESTMENTS-AT-COST> 449002
<INVESTMENTS-AT-VALUE> 464607
<RECEIVABLES> 8827
<ASSETS-OTHER> 2349
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 475783
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2996
<TOTAL-LIABILITIES> 2996
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 460206
<SHARES-COMMON-STOCK> 65
<SHARES-COMMON-PRIOR> 4
<ACCUMULATED-NII-CURRENT> 991
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4014)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 15604
<NET-ASSETS> 472787
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 25361
<OTHER-INCOME> 0
<EXPENSES-NET> 3649
<NET-INVESTMENT-INCOME> 21712
<REALIZED-GAINS-CURRENT> 1183
<APPREC-INCREASE-CURRENT> 6804
<NET-CHANGE-FROM-OPS> 29699
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 13
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 66
<NUMBER-OF-SHARES-REDEEMED> (5)
<SHARES-REINVESTED> 1
<NET-CHANGE-IN-ASSETS> 23795
<ACCUMULATED-NII-PRIOR> 1015
<ACCUMULATED-GAINS-PRIOR> (5198)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2018
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3649
<AVERAGE-NET-ASSETS> 260
<PER-SHARE-NAV-BEGIN> 10.59
<PER-SHARE-NII> 0.53
<PER-SHARE-GAIN-APPREC> 0.19
<PER-SHARE-DIVIDEND> (0.53)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.78
<EXPENSE-RATIO> 0.59
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 21
<NAME> NATIONAL INSURED MUNI BOND - CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 771385
<INVESTMENTS-AT-VALUE> 855294
<RECEIVABLES> 15641
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 3
<TOTAL-ASSETS> 870938
<PAYABLE-FOR-SECURITIES> 10404
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4021
<TOTAL-LIABILITIES> 14425
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 773153
<SHARES-COMMON-STOCK> 8938
<SHARES-COMMON-PRIOR> 8203
<ACCUMULATED-NII-CURRENT> 578
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2373
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 80409
<NET-ASSETS> 856513
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23840
<OTHER-INCOME> 0
<EXPENSES-NET> 2849
<NET-INVESTMENT-INCOME> 20991
<REALIZED-GAINS-CURRENT> 321
<APPREC-INCREASE-CURRENT> 19432
<NET-CHANGE-FROM-OPS> 40744
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 2289
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1162
<NUMBER-OF-SHARES-REDEEMED> 554
<SHARES-REINVESTED> 127
<NET-CHANGE-IN-ASSETS> 25956
<ACCUMULATED-NII-PRIOR> 320
<ACCUMULATED-GAINS-PRIOR> 2051
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2024
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2849
<AVERAGE-NET-ASSETS> 844745
<PER-SHARE-NAV-BEGIN> 10.66
<PER-SHARE-NII> .54
<PER-SHARE-GAIN-APPREC> .41
<PER-SHARE-DIVIDEND> (.55)
<PER-SHARE-DISTRIBUTIONS> (.03)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.29
<EXPENSE-RATIO> .83
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 22
<NAME> NATIONAL INSURED MUNI BOND - CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 771385
<INVESTMENTS-AT-VALUE> 855294
<RECEIVABLES> 15641
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 3
<TOTAL-ASSETS> 870938
<PAYABLE-FOR-SECURITIES> 10404
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4021
<TOTAL-LIABILITIES> 14425
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 773153
<SHARES-COMMON-STOCK> 869
<SHARES-COMMON-PRIOR> 453
<ACCUMULATED-NII-CURRENT> 578
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2373
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 80409
<NET-ASSETS> 856513
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23840
<OTHER-INCOME> 0
<EXPENSES-NET> 2849
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<DISTRIBUTIONS-OF-GAINS> 0
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<PER-SHARE-NAV-BEGIN> 10.67
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 23
<NAME> NATIONAL INSURED MUNI BOND - CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
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<INVESTMENTS-AT-VALUE> 855294
<RECEIVABLES> 15641
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 3
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<PAID-IN-CAPITAL-COMMON> 773153
<SHARES-COMMON-STOCK> 832
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<ACCUMULATED-NET-GAINS> 2373
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 80409
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<DIVIDEND-INCOME> 0
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<OTHER-INCOME> 0
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<NET-INVESTMENT-INCOME> 20991
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the Financial Statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 23
<NAME> NATIONAL INSURED MUNI BOND - CLASS R
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1999
<PERIOD-START> MAY-01-1998
<PERIOD-END> OCT-31-1998
<INVESTMENTS-AT-COST> 771385
<INVESTMENTS-AT-VALUE> 855294
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<SHARES-COMMON-STOCK> 65468
<SHARES-COMMON-PRIOR> 66189
<ACCUMULATED-NII-CURRENT> 578
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2373
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 80409
<NET-ASSETS> 856513
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23840
<OTHER-INCOME> 0
<EXPENSES-NET> 2849
<NET-INVESTMENT-INCOME> 20991
<REALIZED-GAINS-CURRENT> 321
<APPREC-INCREASE-CURRENT> 19432
<NET-CHANGE-FROM-OPS> 40744
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<DISTRIBUTIONS-OF-INCOME> 18120
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<PER-SHARE-NAV-END> 10.98
<EXPENSE-RATIO> .66
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
