|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Carbides, of calcium, whether or not chemically defined | $35,232 | $30,399 | $40,301 | $58,167 |
| Carbides, of silicon, whether or not chemically defined | $673 | $7 | | $713 |
| Carbides other than of carbon/silicon, whether or not chemically defined | | | $28 | |
| Total | $35,905 | $30,406 | $40,329 | $58,880 |
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