Consolidated Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 217,025,278	$ 569,734,496
Short-term investments	169,412,999	152,538,054
Accounts receivable, net	213,537,799	231,121,788
Inventories, net	225,281,599	216,765,583
Prepaid expenses and other	25,672,579	14,403,902
Total current assets	850,930,254	1,184,563,823
PLANT AND EQUIPMENT:
Land, buildings and improvements	340,910,332	317,600,833
Machinery and equipment	838,887,032	790,833,278
Construction-in-process	18,156,423	35,828,403
Total Plant and Equipment	1,197,953,787	1,144,262,514
Less- Accumulated depreciation	(699,480,021)	(651,783,184)
Net Plant and Equipment	498,473,766	492,479,330
OTHER ASSETS:
Goodwill	307,365,845	307,365,845
Long-term investments	137,979,082	57,782,418
Intangible assets, net	269,675,000	288,975,000
Patents and other assets, net	21,010,121	20,887,496
Total Other Assets	736,030,048	675,010,759
TOTAL ASSETS	2,085,434,068	2,352,053,912
CURRENT LIABILITIES:
Accounts payable	92,810,316	89,898,467
Accrued liabilities:
Salaries, wages and vacation	15,860,073	18,502,209
Income taxes	4,293,608	360,014
Royalties	16,174,041	14,660,864
Dividends payable	28,526,147	28,028,132
Current portion of long term debt	0	78,000,000
Other	11,496,734	14,197,321
Total current liabilities	169,160,919	243,647,007
DEFERRED INCOME TAXES	54,521,489	58,888,644
TOTAL LIABILITIES	223,682,408	302,535,651
SHAREHOLDERS’ INVESTMENT:
Preferred stock, no par value, 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock, par value $.06 per share; 400,000,000 shares authorized; 259,328,613 and 280,281,321 shares issued and outstanding in 2018 and 2017 respectively.	15,559,717	16,816,879
Additional paid-in capital	745,324,144	723,510,672
Retained earnings	1,102,468,137	1,301,997,327
Accumulated other comprehensive income:
Unrealized gain on investments	74,549	6,626,379
Unrealized gain (loss) on derivatives	0	(78,026)
Cumulative translation adjustment	(1,674,887)	645,030
Total shareholders’ investment	1,861,751,660	2,049,518,261
TOTAL LIABILITES AND SHAREHOLDERS' INVESTMENT	$ 2,085,434,068	$ 2,352,053,912