<PAGE> PAGE 1
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000 C000000 0000704779
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<PAGE> PAGE 2
013 A000001 ARTHUR ANDERSEN & CO.
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013 B030001 60603
014 A000001 JOHN NUVEEN & CO., INC.
014 B000001 8-13464
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015 C030004 10015
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<PAGE> PAGE 3
022 C000002 74035
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022 A000009 PIPER JAFFRAY & HOPWOOD
022 B000009 41-0953246
022 C000009 4622
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 9
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SIGNATURE STEPHEN D. FOY
TITLE V.P. & CONTROLLER
<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>
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> FEB-28-1999
<PERIOD-START> MAR-1-1998
<PERIOD-END> AUG-31-1998
<INVESTMENTS-AT-COST> 252055
<INVESTMENTS-AT-VALUE> 252055
<RECEIVABLES> 2660
<ASSETS-OTHER> 810
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 255525
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 837
<TOTAL-LIABILITIES> 837
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 254688
<SHARES-COMMON-STOCK> 254688
<SHARES-COMMON-PRIOR> 270723
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 254688
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4837
<OTHER-INCOME> 0
<EXPENSES-NET> 975
<NET-INVESTMENT-INCOME> 3862
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 3862
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 3862
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 79019
<NUMBER-OF-SHARES-REDEEMED> (98655)
<SHARES-REINVESTED> 3602
<NET-CHANGE-IN-ASSETS> (16035)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 650
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1020
<AVERAGE-NET-ASSETS> 257963
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .01
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (.01)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .75
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
