<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
This schedule contains summary consolidated financial information extracted from
the Company's Form 10-Q/A for the three-month period ended March 31, 2000 and is
qualified in its entirety by reference to such Form 10-Q/A.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> MAR-31-2000
<CASH> 27,531,677
<SECURITIES> 0
<RECEIVABLES> 148,403,549
<ALLOWANCES> 2,651,770
<INVENTORY> 0
<CURRENT-ASSETS> 209,512,151
<PP&E> 258,130,119
<DEPRECIATION> 111,760,093
<TOTAL-ASSETS> 449,949,196
<CURRENT-LIABILITIES> 100,869,420
<BONDS> 0
0
0
<COMMON> 430,091
<OTHER-SE> 183,682,295
<TOTAL-LIABILITY-AND-EQUITY> 449,949,196
<SALES> 161,311,916
<TOTAL-REVENUES> 161,311,916
<CGS> 0
<TOTAL-COSTS> 102,211,246
<OTHER-EXPENSES> 46,915,076
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1,235,732
<INCOME-PRETAX> 10,948,962
<INCOME-TAX> 4,248,000
<INCOME-CONTINUING> 6,700,962
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 6,700,962
<EPS-BASIC> 0.16
<EPS-DILUTED> 0.16
</TABLE>