|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | | $31 | $2,762 | | | |
| Carbides, of silicon, whether or not chemically defined | $2,199 | $449 | $25 | $89,500 | $659 | $2,681 | $6,489 |
| Carbides other than of carbon/silicon, whether or not chemically defined | | | $20 | | | $379 | |
| Total | $2,199 | $449 | $76 | $92,262 | $659 | $3,060 | $6,489 |
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