WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 100
<NAME> EATON VANCE NATIONAL FUND - CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 1763210
<INVESTMENTS-AT-VALUE> 1769985
<RECEIVABLES> 1837
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1771822
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 9179
<TOTAL-LIABILITIES> 9179
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 17018
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 174024
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 119418
<EXPENSES-NET> 13609
<NET-INVESTMENT-INCOME> 105810
<REALIZED-GAINS-CURRENT> (29265)
<APPREC-INCREASE-CURRENT> (16870)
<NET-CHANGE-FROM-OPS> 59674
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 11519
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 188
<NUMBER-OF-SHARES-SOLD> 76664
<NUMBER-OF-SHARES-REDEEMED> 114313
<SHARES-REINVESTED> 5307
<NET-CHANGE-IN-ASSETS> (353828)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 13609
<AVERAGE-NET-ASSETS> 184634
<PER-SHARE-NAV-BEGIN> 10.44
<PER-SHARE-NII> 0.629
<PER-SHARE-GAIN-APPREC> (0.200)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.639)
<RETURNS-OF-CAPITAL> 4.39
<PER-SHARE-NAV-END> 10.23
<EXPENSE-RATIO> 0.66
</TABLE>
