WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the
semi-annual report dated September 30, 2000 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 221
<NAME> GNMA FUND-INSTITUTIONAL CLASS
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2001
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 8181
<INVESTMENTS-AT-VALUE> 8151
<RECEIVABLES> 98
<ASSETS-OTHER> 1
<OTHER-ITEMS-ASSETS> 1
<TOTAL-ASSETS> 8251
<PAYABLE-FOR-SECURITIES> 257
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4
<TOTAL-LIABILITIES> 261
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 7977
<SHARES-COMMON-STOCK> 806
<SHARES-COMMON-PRIOR> 435
<ACCUMULATED-NII-CURRENT> 39
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 3
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (29)
<NET-ASSETS> 7990
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 229
<OTHER-INCOME> 0
<EXPENSES-NET> 16
<NET-INVESTMENT-INCOME> 213
<REALIZED-GAINS-CURRENT> 10
<APPREC-INCREASE-CURRENT> 57
<NET-CHANGE-FROM-OPS> 280
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 213
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 360
<NUMBER-OF-SHARES-REDEEMED> 10
<SHARES-REINVESTED> 21
<ISSUED-IN-REORGANIZATION> 0
<FUND-REIMBURSEMENT-FEE> 0
<NET-CHANGE-IN-ASSETS> 3682
<ACCUMULATED-NII-PRIOR> 39
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 7
<GROSS-ADVISORY-FEES> 8
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 16
<AVERAGE-NET-ASSETS> 6800
<PER-SHARE-NAV-BEGIN> 9.89
<PER-SHARE-NII> 0.31
<PER-SHARE-GAIN-APPREC> 0.03
<PER-SHARE-DIVIDEND> (0.31)
<PER-SHARE-DISTRIBUTIONS> 0.00
<PER-SHARE-FUND-REIMBURSEMENT-FEE> 0.00
<PER-SHARE-NAV-END> 9.92
<EXPENSE-RATIO> 0.50
</TABLE>
