<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 21
<NAME> LIMITED DURATION
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> APR-28-2000
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 9,895
<OTHER-ITEMS-ASSETS> 86,807
<TOTAL-ASSETS> 96,702
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 96,702
<TOTAL-LIABILITIES> 96,702
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 106,157
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 336,888
<ACCUMULATED-NII-CURRENT> (56,385)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (49,772)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 0
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 60,911
<OTHER-INCOME> 0
<EXPENSES-NET> (51,528)
<NET-INVESTMENT-INCOME> 9,383
<REALIZED-GAINS-CURRENT> (49,772)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> (40,389)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (57,001)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> (341,437)
<SHARES-REINVESTED> 4,549
<NET-CHANGE-IN-ASSETS> (3,205,823)
<ACCUMULATED-NII-PRIOR> (8,767)
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 3,085
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 30,484
<AVERAGE-NET-ASSETS> 3,216,606
<PER-SHARE-NAV-BEGIN> 9.516
<PER-SHARE-NII> 0.129
<PER-SHARE-GAIN-APPREC> (9.516)
<PER-SHARE-DIVIDEND> (0.129)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 0.000
<EXPENSE-RATIO> 0.40
</TABLE>
