<TABLE> <S> <C>
<ARTICLE> 5
<S> <C> <C> <C> <C>
<PERIOD-TYPE> 12-MOS 9-MOS 6-MOS 3-MOS
<FISCAL-YEAR-END> MAR-31-1998 MAR-31-1998 MAR-31-1998 MAR-31-1998
<PERIOD-START> APR-01-1997 APR-01-1997 APR-01-1997 APR-01-1997
<PERIOD-END> MAR-31-1998 DEC-31-1997 SEP-30-1997 JUN-30-1997
<CASH> 206,278 112,069 97,729 113,476
<SECURITIES> 7 7 7 0
<RECEIVABLES> 397,385 351,616 280,633 270,132
<ALLOWANCES> 8,812 7,928 5,991 6,560
<INVENTORY> 0 0 0 0
<CURRENT-ASSETS> 676,275 537,694 443,644 433,590
<PP&E> 133,737 129,484 122,635 117,545
<DEPRECIATION> 49,243 47,392 44,439 41,997
<TOTAL-ASSETS> 1,072,640 937,810 815,302 766,534
<CURRENT-LIABILITIES> 313,951 283,631 231,923 237,509
<BONDS> 6,956 6,876 10,609 10,711
0 0 0 0
0 0 0 0
<COMMON> 3,603 3,584 3,492 3,456
<OTHER-SE> 708,322 611,033 532,083 479,257
<TOTAL-LIABILITY-AND-EQUITY> 1,072,640 937,810 533,470 766,534
<SALES> 1,139,318 781,494 471,859 224,478
<TOTAL-REVENUES> 1,139,318 781,494 471,859 224,478
<CGS> 865,965 613,777 382,057 184,480
<TOTAL-COSTS> 865,965 613,777 382,057 184,480
<OTHER-EXPENSES> 0 0 0 0
<LOSS-PROVISION> 0 0 0 0
<INTEREST-EXPENSE> 1,147 965 663 183
<INCOME-PRETAX> 290,770 176,001 94,336 42,387
<INCOME-TAX> 96,826 58,608 31,414 14,115
<INCOME-CONTINUING> 193,944 117,393 62,922 28,272
<DISCONTINUED> 0 0 0 0
<EXTRAORDINARY> 0 0 0 0
<CHANGES> 0 0 0 0
<NET-INCOME> 193,944 117,393 62,922 28,272
<EPS-BASIC> 0.55 0.34 0.18 0.08
<EPS-DILUTED> 0.50 0.31 0.17 0.08
</TABLE>