<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
SUPPLEMENTAL CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF
OPERATIONS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED>
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> DEC-31-1997
<CASH> 59,630
<SECURITIES> 0
<RECEIVABLES> 392,637
<ALLOWANCES> 14,541
<INVENTORY> 0
<CURRENT-ASSETS> 479,635
<PP&E> 127,385
<DEPRECIATION> 60,182
<TOTAL-ASSETS> 804,516
<CURRENT-LIABILITIES> 440,787
<BONDS> 150,678
0
0
<COMMON> 80
<OTHER-SE> 196,010
<TOTAL-LIABILITY-AND-EQUITY> 804,516
<SALES> 610,762
<TOTAL-REVENUES> 610,762
<CGS> 0
<TOTAL-COSTS> 522,850
<OTHER-EXPENSES> (814)
<LOSS-PROVISION> 4,211
<INTEREST-EXPENSE> 10,502
<INCOME-PRETAX> 74,013
<INCOME-TAX> 22,805
<INCOME-CONTINUING> 50,879
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 50,879
<EPS-BASIC> 0.67
<EPS-DILUTED> 0.66
</TABLE>