<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             DEC-01-1996             DEC-01-1996             DEC-01-1996
<PERIOD-END>                               FEB-28-1997             MAY-31-1997             AUG-31-1997
<CASH>                                           2,781                   4,943                   5,827
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                      307                      82                      53
<ALLOWANCES>                                       211                      16                      12
<INVENTORY>                                          0                       0                       0
<CURRENT-ASSETS>                                     0                       0                       0
<PP&E>                                             285                     247                     220
<DEPRECIATION>                                     277                     241                     215
<TOTAL-ASSETS>                                   6,704                   5,536                   5,989
<CURRENT-LIABILITIES>                                0                       0                       0
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                        20,215                  20,182                  20,182
<OTHER-SE>                                    (15,676)                (15,634)                (20,764)
<TOTAL-LIABILITY-AND-EQUITY>                     6,704                   5,536                   5,989
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                                48,857                  52,117                  52,228
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                   43,079                  46,288                  46,311
<OTHER-EXPENSES>                                   267                     594                     817
<LOSS-PROVISION>                                  (10)                    (15)                      13
<INTEREST-EXPENSE>                                 424                     424                     425
<INCOME-PRETAX>                                  5,087                   4,811                   4,675
<INCOME-TAX>                                     1,691                   1,373                   1,308
<INCOME-CONTINUING>                              3,396                   3,438                   3,367
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     3,396                   3,438                   3,367
<EPS-PRIMARY>                                    72.76                   70.30                   67.82
<EPS-DILUTED>                                    72.76                   70.30                   67.82


</TABLE>