Consolidated Statements of Cash Flows Years ended December 31  2002) 2001 2000 Cash flows from operating activities Net income $24 775 962) $17 328 529) $120 802 261) Adjustments to reconcile net income to net cash provided by (used in) operating activities: Depreciation 16 405 645) 16 798 846) 13 418 843) Loss on sale of property  plant and equipment 100 520) Loss (gain) on sale of short-term investments (30 954) 179 729) 141 233) Loss (gain) on sale of long-term investments 426 155) (5 159 414) (85 040 126) Write-down of other equity and debt securities 11 626 608) 5 653 536) 1 000 000) Deferred income taxes 1 210 392) (2 527 095) 16 411) Income tax benefit from exercise of non-qualified stock options 596 732) 16 451) 3 002 720) Change in operating assets and liabilities: Accounts receivable  net 21 716 477) 21 534 964) (22 096 955) Other receivables 5 149 743) 26 250 108) (31 430 079) Inventory  net 16 923 086) 32 403 259) (30 683 956) Prepaid expenses and other assets 857 431) 525 968) (2 871 152) Accounts payable 2 237 280) (18 562 147) 21 339 984) Accrued expenses 727 935) (838 391) 1 451 825) Income taxes payable 2 454 834) (382 185) (2 362 225) Net cash provided by (used in) operating activities 105 177 848 ) 93 222 158 ) (13 311 216) Cash flows from investing activities Expenditures for property  plant and equipment (2 646 553) (13 215 927) (32 540 097) Proceeds from the disposition of property  plant and equipment 100 000) Proceeds from sale of long-term investments 145 509 383) 36 281 649) 91 118 394) Purchases of long-term investments (189 385 000) (97 793 588) (37 027 741) Proceeds from sale of short-term investments 42 377 322) 59 228 684) 177 081 903) Purchases of short-term investments (35 810 613) (53 544 339) (168 792 543) Net cash provided by (used in) investing activities (39 855 461) (69 043 521) 29 839 916 ) Cash flows from financing activities Proceeds from issuance of common stock 3 696 120) 453 394) 6 768 117) Purchase of treasury stock (25 206 523) (4 100 350) (70 426) Net cash provided by (used in) financing activities (21 510 403) (3 646 956) 6 697 691 ) Net increase in cash and cash equivalents 43 811 984) 20 531 681) 23 226 391) Cash and cash equivalents  beginning of year 81 280 409 ) 60 748 728 ) 37 522 337 ) Cash and cash equivalents  end of year $125 092 393 ) $81 280 409 ) $60 748 728 ) Supplemental disclosure of cash flow information: Cash paid during the year for interest $2 527 778) $1 867 264) $1 802 158) Cash paid during the year for income taxes $8 497 608) $11 760 534) $61 760 406) The accompanying notes are an integral part of these consolidated financial statements. 23 Financial Results