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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | $1,513 | | | | | |
| Carbides, of silicon, whether or not chemically defined | $680,873 | $843,683 | $550,117 | $679,551 | $924,598 | $1,417,505 | $1,595,838 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $227,517 | $1,059,316 | $1,652,137 | $1,765,551 | $459,049 | $2,812,518 | $296,188 |
| Total | $908,390 | $1,904,512 | $2,202,254 | $2,445,102 | $1,383,647 | $4,230,023 | $1,892,026 |
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