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Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Net sales | $ 375,691 | $ 359,490 | $ 296,808
Cost of products sold | 285,540 | 271,653 | 220,471
Gross profit | 90,151 | 87,837 | 76,337
Selling, general and administrative expenses | 47,968 | 44,843 | 37,378
Operating income | 42,183 | 42,994 | 38,959
Other income | 907 | 409 | 362
Other expense | (643) | (718) | (988)
Income before income taxes | 42,447 | 42,685 | 38,333
Income taxes | 14,244 | 13,881 | 12,370
Net income | $ 28,203 | $ 28,804 | $ 25,963
Earnings per share (in Dollars per share) | $ 1.34 | $ 1.37 | $ 1.24
Average number of shares outstanding (in Shares) | 20,993,893 | 20,987,663 | 20,905,728

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