<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
This schedule contains financial information extracted from the Statement of
Assets and Liabilities at June 30, 1998 and the Statement of Operations from
January 1, 1998 to June 30, 1998 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-31-1998             DEC-31-1998
<PERIOD-START>                             APR-01-1998             JAN-01-1998
<PERIOD-END>                               JUN-30-1998             JUN-30-1998
<INVESTMENTS-AT-COST>                        1,704,057               1,704,057
<INVESTMENTS-AT-VALUE>                       1,703,240               1,703,240
<RECEIVABLES>                                        0                       0
<ASSETS-OTHER>                                  14,683                  14,683
<OTHER-ITEMS-ASSETS>                           339,569                 339,569
<TOTAL-ASSETS>                               2,058,309               2,058,309
<PAYABLE-FOR-SECURITIES>                             0                       0
<SENIOR-LONG-TERM-DEBT>                              0                       0
<OTHER-ITEMS-LIABILITIES>                       27,380                  27,380
<TOTAL-LIABILITIES>                             27,380                  27,380
<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>                       21,626                  46,605
<OVERDISTRIBUTION-NII>                               0                       0
<ACCUMULATED-NET-GAINS>                              0                       0
<OVERDISTRIBUTION-GAINS>                             0                       0
<ACCUM-APPREC-OR-DEPREC>                         (817)                   (817)
<NET-ASSETS>                                 2,030,929               2,030,929
<DIVIDEND-INCOME>                                    0                       0
<INTEREST-INCOME>                               21,626                  46,605
<OTHER-INCOME>                                       0                       0
<EXPENSES-NET>                                  28,344                  47,764
<NET-INVESTMENT-INCOME>                        (9,609)                 (5,440)
<REALIZED-GAINS-CURRENT>                             0                       0
<APPREC-INCREASE-CURRENT>                          578                   (817)
<NET-CHANGE-FROM-OPS>                          (9,609)                 (5,440)
<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>                         (9,609)                 (5,440)
<ACCUMULATED-NII-PRIOR>                              0                       0
<ACCUMULATED-GAINS-PRIOR>                            0                       0
<OVERDISTRIB-NII-PRIOR>                              0                       0
<OVERDIST-NET-GAINS-PRIOR>                           0                       0
<GROSS-ADVISORY-FEES>                            7,500                  17,500
<INTEREST-EXPENSE>                                  50                      50
<GROSS-EXPENSE>                                 28,344                  47,764
<AVERAGE-NET-ASSETS>                         2,035,734               2,033,649
<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
<AVG-DEBT-OUTSTANDING>                               0                       0
<AVG-DEBT-PER-SHARE>                                 0                       0
        

</TABLE>