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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $134,037 | $94,098 | $152,724 | $261,557 | $136,364 | $116,358 | $19,252 |
| Carbides, of silicon, whether or not chemically defined | $22,058 | $15,062 | $11,226 | $127,532 | $807,793 | $476,390 | $704 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $434 | $2,251 | $45,245 | $42,511 | $4,024 | $932 | $897 |
| Total | $156,529 | $111,411 | $209,195 | $431,600 | $948,181 | $593,680 | $20,853 |
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