<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF TOKOS FOR THE YEAR ENDED DECEMBER 31, 1996, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                           6,930        
<SECURITIES>                                    17,710          
<RECEIVABLES>                                   55,654          
<ALLOWANCES>                                   (26,198)          
<INVENTORY>                                        867       
<CURRENT-ASSETS>                                56,591          
<PP&E>                                          33,213
<DEPRECIATION>                                  17,993           
<TOTAL-ASSETS>                                 223,188
<CURRENT-LIABILITIES>                           34,566          
<BONDS>                                          2,499
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           363    
<OTHER-SE>                                     172,815    
<TOTAL-LIABILITY-AND-EQUITY>                   223,188        
<SALES>                                              0
<TOTAL-REVENUES>                               130,806 
<CGS>                                                0
<TOTAL-COSTS>                                   55,911
<OTHER-EXPENSES>                               119,383
<LOSS-PROVISION>                                 7,591
<INTEREST-EXPENSE>                                (353)
<INCOME-PRETAX>                                (51,121)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (51,121)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (51,121)
<EPS-PRIMARY>                                    (1.58)
<EPS-DILUTED>                                    (1.58)