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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $157,539 | $167,771 | $152,674 | $211,540 | $245,239 | $157,079 | $170,168 |
| Carbides, of silicon, whether or not chemically defined | $180 | $5,725 | $338 | $369 | $48 | $1,538 | $7,094 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $713 | | $79,501 | $308 | $1,385 | | |
| Total | $158,432 | $173,496 | $232,513 | $212,217 | $246,672 | $158,617 | $177,262 |
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