<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> 909512
<INVESTMENTS-AT-VALUE> 928723
<RECEIVABLES> 17536
<ASSETS-OTHER> 1887
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 948146
<PAYABLE-FOR-SECURITIES> 6681
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4196
<TOTAL-LIABILITIES> 10877
<SENIOR-EQUITY> 347000
<PAID-IN-CAPITAL-COMMON> 571129
<SHARES-COMMON-STOCK> 41094
<SHARES-COMMON-PRIOR> 41094
<ACCUMULATED-NII-CURRENT> 1042
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1113)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 19211
<NET-ASSETS> 937269
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 28450
<OTHER-INCOME> 0
<EXPENSES-NET> 3571
<NET-INVESTMENT-INCOME> 24879
<REALIZED-GAINS-CURRENT> (481)
<APPREC-INCREASE-CURRENT> (7439)
<NET-CHANGE-FROM-OPS> 16959
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 19511
<DISTRIBUTIONS-OF-GAINS> 715
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (10212)
<ACCUMULATED-NII-PRIOR> 2415
<ACCUMULATED-GAINS-PRIOR> 288
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2916
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3614
<AVERAGE-NET-ASSETS> 939581
<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>
