|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $43,470 | | | $18,509 | | | |
| Carbides, of silicon, whether or not chemically defined | $52 | $2,154 | $510 | $26,584 | $1,200 | $142 | $3,600 |
| Carbides other than of carbon/silicon, whether or not chemically defined | | $50 | | $18 | | | |
| Total | $43,522 | $2,204 | $510 | $45,111 | $1,200 | $142 | $3,600 |
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