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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbides, of calcium, whether or not chemically defined | $15,449 | $10,113 | $6,352 | | $7,114 | $10,063 |
| Carbides, of silicon, whether or not chemically defined | | | | $1,022 | | |
| Carbides other than of carbon/silicon, whether or not chemically defined | | $19 | | | | |
| Total | $15,449 | $10,132 | $6,352 | $1,022 | $7,114 | $10,063 |
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