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

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                         128,621
<SECURITIES>                                    32,241
<RECEIVABLES>                                  310,044
<ALLOWANCES>                                     1,777
<INVENTORY>                                          0
<CURRENT-ASSETS>                               657,793
<PP&E>                                         383,733
<DEPRECIATION>                                 128,402
<TOTAL-ASSETS>                               1,170,108
<CURRENT-LIABILITIES>                          330,330
<BONDS>                                        157,907
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                         33
<COMMON>                                         1,057
<OTHER-SE>                                     645,042
<TOTAL-LIABILITY-AND-EQUITY>                 1,170,108
<SALES>                                              0
<TOTAL-REVENUES>                             1,221,776
<CGS>                                                0
<TOTAL-COSTS>                                1,092,387
<OTHER-EXPENSES>                                (7,988)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              11,810
<INCOME-PRETAX>                                125,567
<INCOME-TAX>                                    39,924
<INCOME-CONTINUING>                             85,643
<DISCONTINUED>                                   2,926
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    88,569
<EPS-BASIC>                                       0.85
<EPS-DILUTED>                                     0.80