|
| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | $2,474 | $52,868 | $48,851 | $24,156 | $9,973 |
| Carbides, of silicon, whether or not chemically defined | | | | | $1,170 | |
| Carbides other than of carbon/silicon, whether or not chemically defined | $12 | | | | | $76,799 |
| Total | $12 | $2,474 | $52,868 | $48,851 | $25,326 | $86,772 |
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