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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbides, of calcium, whether or not chemically defined | $1,638 | $1,551 | $1,968 | $2,077 | $2,550 | $1,388 |
| Carbides, of silicon, whether or not chemically defined | $852 | $551 | $1,625 | $71,166 | $85,871 | $9,527 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $275 | $470 | $777 | $5,077 | $8,680 | $11,423 |
| Total | $2,765 | $2,572 | $4,370 | $78,320 | $97,101 | $22,338 |
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