|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $843 | $867 | $115 | $45,580 | $4,599 | $2,273 | $688 |
| Carbides, of silicon, whether or not chemically defined | | | | | $404,568 | $168,414 | |
| Carbides other than of carbon/silicon, whether or not chemically defined | | | $55,153 | | | | $7,852 |
| Total | $843 | $867 | $55,268 | $45,580 | $409,167 | $170,687 | $8,540 |
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