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<PAGE> PAGE 15
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<PAGE> PAGE 19
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SIGNATURE O. WALTER RENFFTLEN
TITLE VP & COMPTROLLER
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<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.89
<EXPENSE-RATIO> 0.55
<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 A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 429519
<INVESTMENTS-AT-VALUE> 447654
<RECEIVABLES> 19296
<ASSETS-OTHER> 822
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 467772
<PAYABLE-FOR-SECURITIES> 3663
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2601
<TOTAL-LIABILITIES> 6264
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 446544
<SHARES-COMMON-STOCK> 39950
<SHARES-COMMON-PRIOR> 40110
<ACCUMULATED-NII-CURRENT> 1185
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4357)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 18136
<NET-ASSETS> 461508
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12671
<OTHER-INCOME> 0
<EXPENSES-NET> 1742
<NET-INVESTMENT-INCOME> 10929
<REALIZED-GAINS-CURRENT> 835
<APPREC-INCREASE-CURRENT> 9335
<NET-CHANGE-FROM-OPS> 21099
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 10195
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3299
<NUMBER-OF-SHARES-REDEEMED> 3961
<SHARES-REINVESTED> 501
<NET-CHANGE-IN-ASSETS> 12516
<ACCUMULATED-NII-PRIOR> 1015
<ACCUMULATED-GAINS-PRIOR> (5198)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1003
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1742
<AVERAGE-NET-ASSETS> 431586
<PER-SHARE-NAV-BEGIN> 10.61
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> 0.23
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.85
<EXPENSE-RATIO> 0.74
<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> LIMITED TERM C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 429519
<INVESTMENTS-AT-VALUE> 447654
<RECEIVABLES> 19296
<ASSETS-OTHER> 822
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 467722
<PAYABLE-FOR-SECURITIES> 3663
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2601
<TOTAL-LIABILITIES> 6264
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 446544
<SHARES-COMMON-STOCK> 2575
<SHARES-COMMON-PRIOR> 2222
<ACCUMULATED-NII-CURRENT> 1185
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4357)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 18136
<NET-ASSETS> 461508
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12671
<OTHER-INCOME> 0
<EXPENSES-NET> 1742
<NET-INVESTMENT-INCOME> 10929
<REALIZED-GAINS-CURRENT> 835
<APPREC-INCREASE-CURRENT> 9335
<NET-CHANGE-FROM-OPS> 21099
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 562
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 746
<NUMBER-OF-SHARES-REDEEMED> 421
<SHARES-REINVESTED> 28
<NET-CHANGE-IN-ASSETS> 12516
<ACCUMULATED-NII-PRIOR> 1015
<ACCUMULATED-GAINS-PRIOR> (5198)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1003
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1742
<AVERAGE-NET-ASSETS> 25732
<PER-SHARE-NAV-BEGIN> 10.60
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.24
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.84
<EXPENSE-RATIO> 1.09
<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 R
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 429519
<INVESTMENTS-AT-VALUE> 447654
<RECEIVABLES> 19296
<ASSETS-OTHER> 822
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 467772
<PAYABLE-FOR-SECURITIES> 3663
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2601
<TOTAL-LIABILITIES> 6264
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 446544
<SHARES-COMMON-STOCK> 15
<SHARES-COMMON-PRIOR> 4
<ACCUMULATED-NII-CURRENT> 1185
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4357)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 18136
<NET-ASSETS> 461508
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 12671
<OTHER-INCOME> 0
<EXPENSES-NET> 1742
<NET-INVESTMENT-INCOME> 10929
<REALIZED-GAINS-CURRENT> 835
<APPREC-INCREASE-CURRENT> 9335
<NET-CHANGE-FROM-OPS> 21099
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 2
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 11
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 12516
<ACCUMULATED-NII-PRIOR> 1015
<ACCUMULATED-GAINS-PRIOR> (5198)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1003
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1742
<AVERAGE-NET-ASSETS> 99
<PER-SHARE-NAV-BEGIN> 10.59
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> 0.23
<PER-SHARE-DIVIDEND> (0.26)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.83
<EXPENSE-RATIO> 0.53
<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> 021
<NAME> Nuveen Insured Muni CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 754244
<INVESTMENTS-AT-VALUE> 816749
<RECEIVABLES> 36010
<ASSETS-OTHER> 703
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 853462
<PAYABLE-FOR-SECURITIES> 27091
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3269
<TOTAL-LIABILITIES> 30360
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 757760
<SHARES-COMMON-STOCK> 7247
<SHARES-COMMON-PRIOR> 6498
<ACCUMULATED-NII-CURRENT> 385
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2452
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 62505
<NET-ASSETS> 823102
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23732
<OTHER-INCOME> 0
<EXPENSES-NET> 2747
<NET-INVESTMENT-INCOME> 20985
<REALIZED-GAINS-CURRENT> 4613
<APPREC-INCREASE-CURRENT> 24577
<NET-CHANGE-FROM-OPS> 50175
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1854
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1117
<NUMBER-OF-SHARES-REDEEMED> (475)
<SHARES-REINVESTED> 107
<NET-CHANGE-IN-ASSETS> 33086
<ACCUMULATED-NII-PRIOR> 526
<ACCUMULATED-GAINS-PRIOR> (2170)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1946
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2747
<AVERAGE-NET-ASSETS> 73758
<PER-SHARE-NAV-BEGIN> 10.66
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> 0.40
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.05
<EXPENSE-RATIO> 0.85
<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> 022
<NAME> Nuveen Insured Muni CLASS B
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 754244
<INVESTMENTS-AT-VALUE> 816749
<RECEIVABLES> 36010
<ASSETS-OTHER> 703
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 853462
<PAYABLE-FOR-SECURITIES> 27091
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3269
<TOTAL-LIABILITIES> 30360
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 757760
<SHARES-COMMON-STOCK> 200
<SHARES-COMMON-PRIOR> 46
<ACCUMULATED-NII-CURRENT> 385
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2452
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 62505
<NET-ASSETS> 823102
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23732
<OTHER-INCOME> 0
<EXPENSES-NET> 2747
<NET-INVESTMENT-INCOME> 20985
<REALIZED-GAINS-CURRENT> 4613
<APPREC-INCREASE-CURRENT> 24577
<NET-CHANGE-FROM-OPS> 50175
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 28
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 153
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 1
<NET-CHANGE-IN-ASSETS> 33086
<ACCUMULATED-NII-PRIOR> 526
<ACCUMULATED-GAINS-PRIOR> (2170)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1946
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2747
<AVERAGE-NET-ASSETS> 1330
<PER-SHARE-NAV-BEGIN> 10.67
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.05
<EXPENSE-RATIO> 1.60
<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> 023
<NAME> Nuveen Insurde Muni CLASS C
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 754244
<INVESTMENTS-AT-VALUE> 816749
<RECEIVABLES> 36010
<ASSETS-OTHER> 703
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 853462
<PAYABLE-FOR-SECURITIES> 27091
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3269
<TOTAL-LIABILITIES> 30360
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 757760
<SHARES-COMMON-STOCK> 593
<SHARES-COMMON-PRIOR> 532
<ACCUMULATED-NII-CURRENT> 385
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2452
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 62505
<NET-ASSETS> 823102
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23732
<OTHER-INCOME> 0
<EXPENSES-NET> 2747
<NET-INVESTMENT-INCOME> 20985
<REALIZED-GAINS-CURRENT> 4613
<APPREC-INCREASE-CURRENT> 24577
<NET-CHANGE-FROM-OPS> 50175
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 138
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 116
<NUMBER-OF-SHARES-REDEEMED> (64)
<SHARES-REINVESTED> 10
<NET-CHANGE-IN-ASSETS> 33086
<ACCUMULATED-NII-PRIOR> 526
<ACCUMULATED-GAINS-PRIOR> (2170)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1946
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2747
<AVERAGE-NET-ASSETS> 6171
<PER-SHARE-NAV-BEGIN> 10.56
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.95
<EXPENSE-RATIO> 1.40
<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> 024
<NAME> Nuveen Insured Muni Bond CLASS R
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 754244
<INVESTMENTS-AT-VALUE> 816749
<RECEIVABLES> 36010
<ASSETS-OTHER> 703
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 853462
<PAYABLE-FOR-SECURITIES> 27091
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3269
<TOTAL-LIABILITIES> 30360
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 757760
<SHARES-COMMON-STOCK> 66693
<SHARES-COMMON-PRIOR> 67284
<ACCUMULATED-NII-CURRENT> 385
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2452
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 62505
<NET-ASSETS> 823102
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 23732
<OTHER-INCOME> 0
<EXPENSES-NET> 2747
<NET-INVESTMENT-INCOME> 20985
<REALIZED-GAINS-CURRENT> 4613
<APPREC-INCREASE-CURRENT> 24577
<NET-CHANGE-FROM-OPS> 50175
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 19106
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1953
<NUMBER-OF-SHARES-REDEEMED> (3708)
<SHARES-REINVESTED> 1164
<NET-CHANGE-IN-ASSETS> 33086
<ACCUMULATED-NII-PRIOR> 526
<ACCUMULATED-GAINS-PRIOR> (2170)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1946
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2747
<AVERAGE-NET-ASSETS> 729841
<PER-SHARE-NAV-BEGIN> 10.62
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0.40
<PER-SHARE-DIVIDEND> (0.29)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.01
<EXPENSE-RATIO> 0.65
<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> 011
<NAME> Nuveen Muni Bond CLASS A
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 2668523
<INVESTMENTS-AT-VALUE> 2892084
<RECEIVABLES> 59128
<ASSETS-OTHER> 719
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2951931
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 20428
<TOTAL-LIABILITIES> 20428
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2698343
<SHARES-COMMON-STOCK> 8831
<SHARES-COMMON-PRIOR> 7691
<ACCUMULATED-NII-CURRENT> 519
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 9080
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 223561
<NET-ASSETS> 2931503
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 83364
<OTHER-INCOME> 0
<EXPENSES-NET> 8642
<NET-INVESTMENT-INCOME> 74722
<REALIZED-GAINS-CURRENT> 5783
<APPREC-INCREASE-CURRENT> 97129
<NET-CHANGE-FROM-OPS> 177634
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1921
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1648
<NUMBER-OF-SHARES-REDEEMED> (648)
<SHARES-REINVESTED> 139
<NET-CHANGE-IN-ASSETS> 80696
<ACCUMULATED-NII-PRIOR> 1278
<ACCUMULATED-GAINS-PRIOR> 3297
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 6608
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8642
<AVERAGE-NET-ASSETS> 77421
<PER-SHARE-NAV-BEGIN> 9.14
<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> 9.47
<EXPENSE-RATIO> 0.78
<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> 012
<NAME> Nuveen Muni Bond CLASS B
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-1998
<PERIOD-START> MAY-1-1997
<PERIOD-END> OCT-31-1997
<INVESTMENTS-AT-COST> 2668523
<INVESTMENTS-AT-VALUE> 2892084
<RECEIVABLES> 59128
<ASSETS-OTHER> 719
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2951931
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 20428
<TOTAL-LIABILITIES> 20428
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2698343
<SHARES-COMMON-STOCK> 221
<SHARES-COMMON-PRIOR> 51
<ACCUMULATED-NII-CURRENT> 519
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 9080
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 223561
<NET-ASSETS> 2931503
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 83364
<OTHER-INCOME> 0
<EXPENSES-NET> 8642
<NET-INVESTMENT-INCOME> 74722
<REALIZED-GAINS-CURRENT> 5783
<APPREC-INCREASE-CURRENT> 97129
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This schedule contains Summary Financial Information extracted from the
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by references to such documents.
</LEGEND>
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<NUMBER> 013
<NAME> Nuveen Muni Bond CLASS C
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<TABLE> <S> <C>
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<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 Muni Bond CLASS R
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