<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> SEP-30-1999 <CASH> 40,749 <SECURITIES> 14,937 <RECEIVABLES> 17,677 <ALLOWANCES> (1,377) <INVENTORY> 0 <CURRENT-ASSETS> 81,203 <PP&E> 91,616 <DEPRECIATION> (61,610) <TOTAL-ASSETS> 121,418 <CURRENT-LIABILITIES> 62,814 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 270 <OTHER-SE> 54,331 <TOTAL-LIABILITY-AND-EQUITY> 121,418 <SALES> 0 <TOTAL-REVENUES> 238,075 <CGS> 0 <TOTAL-COSTS> 209,668 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 2,955 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 30,120 <INCOME-TAX> 11,477 <INCOME-CONTINUING> 18,643 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> (823) <NET-INCOME> 17,820 <EPS-BASIC> 0.70 <EPS-DILUTED> 0.70