<ARTICLE> 5 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> DEC-31-1998 <CASH> 40,142,355 <SECURITIES> 0 <RECEIVABLES> 16,746,855 <ALLOWANCES> 0 <INVENTORY> 4,441,537 <CURRENT-ASSETS> 69,808,077 <PP&E> 17,625,346 <DEPRECIATION> 5,311,671 <TOTAL-ASSETS> 82,873,269 <CURRENT-LIABILITIES> 17,679,162 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 65,096,741 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 82,873,269 <SALES> 127,620,102 <TOTAL-REVENUES> 127,620,102 <CGS> 97,765,554 <TOTAL-COSTS> 97,765,554 <OTHER-EXPENSES> 4,738,884 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 204,535 <INCOME-PRETAX> 26,238,227 <INCOME-TAX> 9,708,144 <INCOME-CONTINUING> 16,530,083 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 16,530,083 <EPS-PRIMARY> 1.68 <EPS-DILUTED> 1.50