<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 241,552
<SECURITIES> 112,768
<RECEIVABLES> 342,084
<ALLOWANCES> 29,532
<INVENTORY> 0
<CURRENT-ASSETS> 764,385
<PP&E> 191,653
<DEPRECIATION> 354,175
<TOTAL-ASSETS> 1,663,766
<CURRENT-LIABILITIES> 345,850
<BONDS> 7,449
0
0
<COMMON> 1,320
<OTHER-SE> 1,309,147
<TOTAL-LIABILITY-AND-EQUITY> 1,663,766
<SALES> 0
<TOTAL-REVENUES> 785,761
<CGS> 0
<TOTAL-COSTS> 458,601<F1>
<OTHER-EXPENSES> 2,756<F2>
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 768
<INCOME-PRETAX> 159,726
<INCOME-TAX> 64,530
<INCOME-CONTINUING> 95,196
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 95,196
<EPS-BASIC> 0.72<F3>
<EPS-DILUTED> 0.71<F3>
<FN>
<F1>Excludes selling, marketing and administrative costs and merger costs.
<F2>Merger costs.
<F3>Includes merger costs totaling $0.02 per both basic and diluted share.
</FN>
</TABLE>