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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS |  |  |
Net sales | $ 239,825 | $ 292,136 | $ 298,616
Cost of goods sold | 186,220 | 226,742 | 232,293
Gross profit | 53,605 | 65,394 | 66,323
Selling, general and administrative expenses | 29,244 | 31,259 | 30,936
Operating income | 24,361 | 34,135 | 35,387
Interest income | 95 | 323 | 268
Income before income taxes | 24,456 | 34,458 | 35,655
Income tax provision | 5,012 | 6,219 | 7,167
Net income | $ 19,444 | $ 28,239 | $ 28,488
EARNINGS PER SHARE |  |  |
Basic | $ 0.57 | $ 0.83 | $ 0.83
Diluted | 0.57 | 0.83 | 0.83
Dividends paid per share | $ 0.40 | $ 0.58 | $ 0.50

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