<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the funancial statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
<NUMBER> 062
<NAME> NUVEEN NEW YORK INSURED MUNI BOND FUND - CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> FEB-28-2001
<PERIOD-START> MAR-01-2000
<PERIOD-END> AUG-31-2000
<INVESTMENTS-AT-COST> 317210
<INVESTMENTS-AT-VALUE> 331741
<RECEIVABLES> 4004
<ASSETS-OTHER> 1022
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 336767
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1918
<TOTAL-LIABILITIES> 1918
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 321715
<SHARES-COMMON-STOCK> 1486
<SHARES-COMMON-PRIOR> 1596
<ACCUMULATED-NII-CURRENT> 306
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1702)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 14530
<NET-ASSETS> 334849
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 9941
<OTHER-INCOME> 0
<EXPENSES-NET> 1349
<NET-INVESTMENT-INCOME> 8592
<REALIZED-GAINS-CURRENT> (1184)
<APPREC-INCREASE-CURRENT> 12095
<NET-CHANGE-FROM-OPS> 19503
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 331
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 101
<NUMBER-OF-SHARES-REDEEMED> 229
<SHARES-REINVESTED> 18
<NET-CHANGE-IN-ASSETS> (505)
<ACCUMULATED-NII-PRIOR> 313
<ACCUMULATED-GAINS-PRIOR> (518)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 902
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1354
<AVERAGE-NET-ASSETS> 15385
<PER-SHARE-NAV-BEGIN> 9.96
<PER-SHARE-NII> .22
<PER-SHARE-GAIN-APPREC> .33
<PER-SHARE-DIVIDEND> (.22)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.29
<EXPENSE-RATIO> 1.67
</TABLE>
