<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> OCT-31-2000
<PERIOD-START> NOV-01-1999
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 958295
<INVESTMENTS-AT-VALUE> 951149
<RECEIVABLES> 18679
<ASSETS-OTHER> 27
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 969855
<PAYABLE-FOR-SECURITIES> 28470
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 24847
<TOTAL-LIABILITIES> 53317
<SENIOR-EQUITY> 338400
<PAID-IN-CAPITAL-COMMON> 596940
<SHARES-COMMON-STOCK> 43237
<SHARES-COMMON-PRIOR> 43237
<ACCUMULATED-NII-CURRENT> 1364
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (13020)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (7146)
<NET-ASSETS> 916538
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 27481
<OTHER-INCOME> 0
<EXPENSES-NET> 3574
<NET-INVESTMENT-INCOME> 23907
<REALIZED-GAINS-CURRENT> (968)
<APPREC-INCREASE-CURRENT> (3648)
<NET-CHANGE-FROM-OPS> 19291
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 18030
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (5403)
<ACCUMULATED-NII-PRIOR> 2152
<ACCUMULATED-GAINS-PRIOR> (12056)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2850
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3604
<AVERAGE-NET-ASSETS> 917809
<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>
