
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND INTERIM UNAUDITED CONSOLIDATED STATEMENTS OF
EARNINGS AND IS QUALIFIED IN ITS ENTIRETY BY RFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1997
<PERIOD-START>                             JUL-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                          48,311
<SECURITIES>                                         0
<RECEIVABLES>                                    5,040
<ALLOWANCES>                                         0
<INVENTORY>                                      1,344
<CURRENT-ASSETS>                                55,185
<PP&E>                                          35,650
<DEPRECIATION>                                  14,190
<TOTAL-ASSETS>                                 112,926
<CURRENT-LIABILITIES>                           56,415
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            64
<OTHER-SE>                                      26,385
<TOTAL-LIABILITY-AND-EQUITY>                   112,926
<SALES>                                         39,118
<TOTAL-REVENUES>                                39,118
<CGS>                                                0
<TOTAL-COSTS>                                   36,544
<OTHER-EXPENSES>                                    42
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,113
<INCOME-PRETAX>                                  1,419
<INCOME-TAX>                                       556
<INCOME-CONTINUING>                                863
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       863
<EPS-PRIMARY>                                      .13
<EPS-DILUTED>                                      .13
        

</TABLE>
