<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Form 10-K/A
for the year ended December 31, 1998, and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<RESTATED>

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                      36,348,863
<SECURITIES>                                         0
<RECEIVABLES>                              112,276,851
<ALLOWANCES>                                   796,171
<INVENTORY>                                          0
<CURRENT-ASSETS>                           176,569,109
<PP&E>                                     171,490,346
<DEPRECIATION>                              72,313,834
<TOTAL-ASSETS>                             361,797,753
<CURRENT-LIABILITIES>                       91,937,273
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       414,519
<OTHER-SE>                                 158,686,803
<TOTAL-LIABILITY-AND-EQUITY>               361,797,753
<SALES>                                    460,102,326
<TOTAL-REVENUES>                           460,102,326
<CGS>                                                0
<TOTAL-COSTS>                              289,801,769
<OTHER-EXPENSES>                           137,628,399
<LOSS-PROVISION>                            11,311,201
<INTEREST-EXPENSE>                             959,152
<INCOME-PRETAX>                             20,401,805
<INCOME-TAX>                                17,959,966
<INCOME-CONTINUING>                          2,441,839
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 2,441,839
<EPS-BASIC>                                       0.06
<EPS-DILUTED>                                     0.06