<TABLE> <S> <C>

<ARTICLE>       5
<LEGEND>
The schedule contains summary financial information extracted from financial
statements for the twelve months ended December 31, 1996 and is qualified in
its entirety by reference to such financial statements.
       
<S>                                                              <C>
<FISCAL-YEAR-END>                                                      DEC-31-1996
<PERIOD-END>                                                           DEC-31-1996
<PERIOD-TYPE>                                                               12-MOS
<CASH>                                                                  49,423,477
<SECURITIES>                                                            27,417,072
<RECEIVABLES>                                                            6,066,940
<ALLOWANCES>                                                              (829,000)
<INVENTORY>                                                              3,548,543
<CURRENT-ASSETS>                                                        85,875,230
<PP&E>                                                                  12,393,650
<DEPRECIATION>                                                          (5,247,392)
<TOTAL-ASSETS>                                                         101,979,793
<CURRENT-LIABILITIES>                                                   13,432,046
<BONDS>                                                                          0
<PREFERRED-MANDATORY>                                                            0 
<PREFERRED>                                                                      0
<COMMON>                                                                   584,724
<OTHER-SE>                                                              62,814,403
<TOTAL-LIABILITY-AND-EQUITY>                                           101,979,793
<SALES>                                                                 51,928,884
<TOTAL-REVENUES>                                                        59,307,572
<CGS>                                                                   20,953,870
<TOTAL-COSTS>                                                           20,953,870
<OTHER-EXPENSES>                                                           539,622
<LOSS-PROVISION>                                                                 0
<INTEREST-EXPENSE>                                                               0
<INCOME-PRETAX>                                                         23,279,842
<INCOME-TAX>                                                             8,598,000
<INCOME-CONTINUING>                                                     14,681,842
<DISCONTINUED>                                                             368,501
<EXTRAORDINARY>                                                                  0
<CHANGES>                                                                        0
<NET-INCOME>                                                            15,050,343
<EPS-PRIMARY>                                                                 3.84
<EPS-DILUTED>                                                                    0
        

</TABLE>