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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $676 | | $1,712 | $633 | $6,704 | | $402,262 |
| Carbides, of silicon, whether or not chemically defined | $392,940 | $53,497 | $1,163,073 | $2,481,629 | $6,224,153 | $1,168,315 | $1,642,820 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $803 | $12,713 | $969 | $27,417 | $2,323 | $1,972 | $37,274 |
| Total | $394,419 | $66,210 | $1,165,754 | $2,509,679 | $6,233,180 | $1,170,287 | $2,082,356 |
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