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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $10,342 | $5,312 | $5,710 | $2,807 | $4,931 | $2,055 | $2,097 |
| Carbides, of silicon, whether or not chemically defined | $6,287 | $138 | $6,506 | $220 | $16 | $47 | $12,960 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $893 | $344 | $761 | $1,186 | $115 | $6,334 | $30,236 |
| Total | $17,522 | $5,794 | $12,977 | $4,213 | $5,062 | $8,436 | $45,293 |
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