<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
STATEMENT OF ASSETS AND LIABILITIES AT JUNE 30, 1999 AND THE STATEMENT OF
OPERATIONS FROM JANUARY 1, 1999 TO JUNE 30, 1999 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1999
<PERIOD-START>                             APR-01-1999             JAN-01-1999
<PERIOD-END>                               JUN-30-1999             JUN-30-1999
<INVESTMENTS-AT-COST>                        1,807,750               1,807,750
<INVESTMENTS-AT-VALUE>                       1,807,768               1,807,768
<RECEIVABLES>                                    9,247                   9,247
<ASSETS-OTHER>                                  11,641                  11,641
<OTHER-ITEMS-ASSETS>                           227,110                 227,110
<TOTAL-ASSETS>                               2,055,748               2,055,748
<PAYABLE-FOR-SECURITIES>                             0                       0
<SENIOR-LONG-TERM-DEBT>                              0                       0
<OTHER-ITEMS-LIABILITIES>                       20,081                  20,081
<TOTAL-LIABILITIES>                             20,081                  20,081
<SENIOR-EQUITY>                                      0                       0
<PAID-IN-CAPITAL-COMMON>                     2,083,290               2,083,290
<SHARES-COMMON-STOCK>                        2,210,434               2,210,434
<SHARES-COMMON-PRIOR>                        2,210,434               2,210,434
<ACCUMULATED-NII-CURRENT>                       19,742                  39,570
<OVERDISTRIBUTION-NII>                               0                       0
<ACCUMULATED-NET-GAINS>                              0                       0
<OVERDISTRIBUTION-GAINS>                             0                       0
<ACCUM-APPREC-OR-DEPREC>                           198                      18
<NET-ASSETS>                                 2,035,667               2,035,667
<DIVIDEND-INCOME>                                    0                       0
<INTEREST-INCOME>                               13,492                  27,070
<OTHER-INCOME>                                   6,250                  12,500
<EXPENSES-NET>                                  17,847                  41,316
<NET-INVESTMENT-INCOME>                            640                 (3,751)
<REALIZED-GAINS-CURRENT>                             0                       0
<APPREC-INCREASE-CURRENT>                          198                      18
<NET-CHANGE-FROM-OPS>                              640                 (3,751)
<EQUALIZATION>                                       0                       0
<DISTRIBUTIONS-OF-INCOME>                            0                       0
<DISTRIBUTIONS-OF-GAINS>                             0                       0
<DISTRIBUTIONS-OTHER>                                0                       0
<NUMBER-OF-SHARES-SOLD>                              0                       0
<NUMBER-OF-SHARES-REDEEMED>                          0                       0
<SHARES-REINVESTED>                                  0                       0
<NET-CHANGE-IN-ASSETS>                             640                 (3,751)
<ACCUMULATED-NII-PRIOR>                              0                       0
<ACCUMULATED-GAINS-PRIOR>                            0                       0
<OVERDISTRIB-NII-PRIOR>                              0                       0
<OVERDIST-NET-GAINS-PRIOR>                           0                       0
<GROSS-ADVISORY-FEES>                                0                       0
<INTEREST-EXPENSE>                                  48                      48
<GROSS-EXPENSE>                                 17,847                  41,316
<AVERAGE-NET-ASSETS>                         2,035,734               2,033,645
<PER-SHARE-NAV-BEGIN>                              .92                     .92
<PER-SHARE-NII>                                    .00                     .00
<PER-SHARE-GAIN-APPREC>                            .00                     .00
<PER-SHARE-DIVIDEND>                               .00                     .00
<PER-SHARE-DISTRIBUTIONS>                          .00                     .00
<RETURNS-OF-CAPITAL>                               .00                     .00
<PER-SHARE-NAV-END>                                .92                     .92
<EXPENSE-RATIO>                                    .01                     .02


</TABLE>