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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $5,269 | $27,221 | $15,805 | $31,259 | $43,990 | $30,406 | $32,751 |
| Carbides, of silicon, whether or not chemically defined | $23,486 | $7,461 | $84,536 | $237 | $214,052 | $3,015 | $30,497 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $975 | $1,626 | $41,934 | $80,874 | | $10,138 | $473 |
| Total | $29,730 | $36,308 | $142,275 | $112,370 | $258,042 | $43,559 | $63,721 |
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