<ARTICLE> 5

                                                                                            
<PERIOD-TYPE>                   12-MOS                   9-MOS                   6-MOS                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1999             MAR-31-1999             MAR-31-1999             MAR-31-1999
<PERIOD-START>                             APR-01-1998             APR-01-1998             APR-01-1998             APR-01-1998
<PERIOD-END>                               MAR-31-1999             DEC-31-1998             SEP-30-1998             JUN-30-1998
<CASH>                                         193,128                 157,064                 123,719                 177,865
<SECURITIES>                                         0                       0                       0                       7
<RECEIVABLES>                                  538,621                 449,406                 427,724                 384,593
<ALLOWANCES>                                    12,152                  11,548                  12,357                   9,007
<INVENTORY>                                          0                       0                       0                       0
<CURRENT-ASSETS>                             1,072,090                 981,890                 814,938                 755,767
<PP&E>                                         155,943                 155,064                 147,114                 139,375
<DEPRECIATION>                                  61,157                  62,819                  58,616                  53,380
<TOTAL-ASSETS>                               1,676,683               1,508,190               1,311,280               1,165,118
<CURRENT-LIABILITIES>                          521,504                 415,057                 355,954                 316,232
<BONDS>                                              0                   3,719                   4,338                   4,532
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                         3,679                   3,700                   3,668                   3,638
<OTHER-SE>                                   1,082,143               1,034,682                 900,950                 798,131
<TOTAL-LIABILITY-AND-EQUITY>                 1,676,683               1,508,190               1,311,280               1,165,118
<SALES>                                      1,638,445               1,138,310                 705,192                 338,623
<TOTAL-REVENUES>                             1,638,445               1,138,310                 705,192                 338,623
<CGS>                                        1,137,807                 816,373                 522,975                 255,834
<TOTAL-COSTS>                                1,137,807                 816,373                 522,975                 255,834
<OTHER-EXPENSES>                                     0                       0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                                 772                     441                     270                     123
<INCOME-PRETAX>                                530,041                 342,211                 194,847                  88,625
<INCOME-TAX>                                   180,178                 116,316                  66,212                  29,778
<INCOME-CONTINUING>                            349,863                 225,895                 128,635                  58,847
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                   349,863                 225,895                 128,635                  58,847
<EPS-BASIC>                                       0.95                    0.62                    0.36                    0.16
<EPS-DILUTED>                                     0.87                    0.56                    0.32                    0.15