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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $2,068,556 | $2,324,438 | $3,764,907 | $6,717,300 | $3,253,973 | $2,390,539 | $2,936,198 |
| Carbides, of silicon, whether or not chemically defined | $21,545,423 | $21,787,362 | $28,770,602 | $39,737,711 | $38,264,644 | $51,607,185 | $58,828,311 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $746,620 | $707,204 | $861,653 | $599,867 | $196,153 | $426,769 | $5,411,152 |
| Total | $24,360,599 | $24,819,004 | $33,397,162 | $47,054,878 | $41,714,770 | $54,424,493 | $67,175,661 |
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