|
| Commodity | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | | | $55,063 | |
| Carbides, of silicon, whether or not chemically defined | $222 | $8,913 | | $213 | $1 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $400 | $40 | $18 | $6,476 | $25,550 |
| Total | $622 | $8,953 | $18 | $61,752 | $25,551 |
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