<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SPSS INC.
AND SUBSIDIARIES CONSOLIDATED BALANCE SHEET AT DECEMBER 31, 1998 AND
CONSOLIDATED STATEMENT OF INCOME FOR THE THREE AND TWELVE MONTHS ENDED DECEMBER
31, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1998
<PERIOD-END>                               DEC-31-1998             DEC-31-1998
<CASH>                                               0                  16,297
<SECURITIES>                                         0                       0
<RECEIVABLES>                                        0                  36,921
<ALLOWANCES>                                         0                   2,106
<INVENTORY>                                          0                   2,871
<CURRENT-ASSETS>                                     0                  58,534
<PP&E>                                               0                  38,829
<DEPRECIATION>                                       0                  22,932
<TOTAL-ASSETS>                                       0                  94,303
<CURRENT-LIABILITIES>                                0                  46,126
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                             0                      95
<OTHER-SE>                                           0                  44,222
<TOTAL-LIABILITY-AND-EQUITY>                         0                  94,303
<SALES>                                         34,544                 123,472
<TOTAL-REVENUES>                                34,544                 123,472
<CGS>                                            2,523                  10,048
<TOTAL-COSTS>                                    2,523                  10,048
<OTHER-EXPENSES>                                29,947                  96,647
<LOSS-PROVISION>                                   423                     724
<INTEREST-EXPENSE>                                 (9)                     754
<INCOME-PRETAX>                                  2,046                  16,982
<INCOME-TAX>                                     3,401                   8,404
<INCOME-CONTINUING>                             (1,355)                  8,578
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                   (1,355)                   8,578
<EPS-BASIC>                                     (0.14)                    0.90
<EPS-DILUTED>                                   (0.14)                    0.85


</TABLE>