<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> 12-MOS
<FISCAL-YEAR-END> MAY-31-2000
<PERIOD-START> JUN-01-1999
<PERIOD-END> MAY-31-2000
<INVESTMENTS-AT-COST> 106814
<INVESTMENTS-AT-VALUE> 104340
<RECEIVABLES> 1910
<ASSETS-OTHER> 110
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 106360
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 481
<TOTAL-LIABILITIES> 481
<SENIOR-EQUITY> 38300
<PAID-IN-CAPITAL-COMMON> 72470
<SHARES-COMMON-STOCK> 5231
<SHARES-COMMON-PRIOR> 5206
<ACCUMULATED-NII-CURRENT> 429
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (2846)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (2474)
<NET-ASSETS> 105879
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 6427
<OTHER-INCOME> 0
<EXPENSES-NET> 921
<NET-INVESTMENT-INCOME> 5506
<REALIZED-GAINS-CURRENT> (177)
<APPREC-INCREASE-CURRENT> (7899)
<NET-CHANGE-FROM-OPS> (2570)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 4259
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 25
<NET-CHANGE-IN-ASSETS> (7585)
<ACCUMULATED-NII-PRIOR> 323
<ACCUMULATED-GAINS-PRIOR> (2670)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 701
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 945
<AVERAGE-NET-ASSETS> 107925
<PER-SHARE-NAV-BEGIN> 0
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 0
<EXPENSE-RATIO> 0
</TABLE>
