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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $735,416 | $254,101 | $488,627 | $788,110 | $846,122 | $537,284 | $264,618 |
| Carbides, of silicon, whether or not chemically defined | $2,911,306 | $791,265 | $284,460 | $234,747 | $211,310 | $29,621 | $20,423 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $4,904 | | | $2,511 | | $973 | $6,505 |
| Total | $3,651,626 | $1,045,366 | $773,087 | $1,025,368 | $1,057,432 | $567,878 | $291,546 |
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