Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 546,477,075	$ 551,557,527
Short-term investments	177,021,197	4,547,355
Accounts receivable	211,591,745	195,969,400
Inventories	189,311,437	174,695,411
Prepaid expenses and other	30,587,575	57,239,099
Total current assets	1,154,989,029	984,008,792
PLANT AND EQUIPMENT:
Land, buildings and improvements	294,696,813	232,665,249
Machinery and equipment	721,713,250	616,335,223
Construction-in-process	30,643,709	84,980,367
Total Plant and Equipment	1,047,053,772	933,980,839
Less- Accumulated depreciation	(581,231,305)	(521,260,569)
Net Plant and Equipment	465,822,467	412,720,270
OTHER ASSETS:
Goodwill	307,365,845	307,365,845
Long-term investments	49,894,363	95,156,539
Intangible Assets, net	308,275,000	327,575,000
Patents and other assets, net	23,273,129	21,846,482
Total Other Assets	688,808,337	751,943,866
TOTAL ASSETS	2,309,619,833	2,148,672,928
CURRENT LIABILITIES:
Accounts payable	79,963,630	66,353,774
Accrued liabilities:
Salaries, wages and vacation	12,378,007	9,324,470
Income Taxes	572,834	148,251
Royalties	11,932,416	10,373,152
Dividends declared	25,896,376	24,759,481
Current portion of long term debt	7,500,000	7,500,000
Other	11,614,716	12,547,418
Total current liabilities	149,857,979	131,006,546
LONG TERM DEBT	178,125,000	225,625,000
DEFERRED INCOME TAXES	71,212,620	69,524,621
TOTAL LIABILITIES	399,195,599	426,156,167
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; 287,737,516 and 291,338,011 shares issued and outstanding in 2016 and 2015 respectively.	17,264,251	17,480,281
Additional paid-in capital	683,446,463	596,782,695
Retained earnings	1,210,984,825	1,109,384,621
Accumulated other comprehensive income:
Unrealized gain on investments	2,788,975	829,907
Unrealized gain (loss) on derivatives	(1,197,281)	(1,915,834)
Cumulative translation adjustment	(2,862,999)	(44,909)
Total shareholders’ investment	1,910,424,234	1,722,516,761
TOTAL LIABILITES AND SHAREHOLDERS' INVESTMENT	$ 2,309,619,833	$ 2,148,672,928