|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | | | | | | $362 |
| Carbides, of silicon, whether or not chemically defined | | | $1,721 | $396 | | | |
| Carbides other than of carbon/silicon, whether or not chemically defined | $6,848 | $5 | | $53,710 | $437,936 | $35,337 | $21,538 |
| Total | $6,848 | $5 | $1,721 | $54,106 | $437,936 | $35,337 | $21,900 |
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