|
| Commodity | 2005 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $34,636 | $143 | | $844 | |
| Carbides, of silicon, whether or not chemically defined | $168 | | | | |
| Carbides other than of carbon/silicon, whether or not chemically defined | | | $47,220 | $194 | $55,985 |
| Total | $34,804 | $143 | $47,220 | $1,038 | $55,985 |
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