<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> 064
   <NAME> NUVEEN HIGH YIELD MUNI BOND FUND - CLASS R
<MULTIPLIER> 1000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          APR-30-2001
<PERIOD-START>                             MAY-01-2000
<PERIOD-END>                               OCT-31-2000
<INVESTMENTS-AT-COST>                            19868
<INVESTMENTS-AT-VALUE>                           19815
<RECEIVABLES>                                      871
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                   20686
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         1106
<TOTAL-LIABILITIES>                               1106
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         19754
<SHARES-COMMON-STOCK>                              216
<SHARES-COMMON-PRIOR>                              282
<ACCUMULATED-NII-CURRENT>                           25
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (146)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          (53)
<NET-ASSETS>                                     19580
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  639
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     133
<NET-INVESTMENT-INCOME>                            506
<REALIZED-GAINS-CURRENT>                          (11)
<APPREC-INCREASE-CURRENT>                          121
<NET-CHANGE-FROM-OPS>                              616
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                          152
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                             30
<NUMBER-OF-SHARES-REDEEMED>                         98
<SHARES-REINVESTED>                                  2
<NET-CHANGE-IN-ASSETS>                            4879
<ACCUMULATED-NII-PRIOR>                             43
<ACCUMULATED-GAINS-PRIOR>                        (135)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               51
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    139
<AVERAGE-NET-ASSETS>                              4586
<PER-SHARE-NAV-BEGIN>                            18.61
<PER-SHARE-NII>                                    .59
<PER-SHARE-GAIN-APPREC>                            .09
<PER-SHARE-DIVIDEND>                             (.62)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              18.67
<EXPENSE-RATIO>                                   1.13


</TABLE>