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| Commodity | 2005 | 2006 | 2007 | 2009 |
| Carbides, of calcium, whether or not chemically defined | $195,969 | $147,238 | $249,760 | $295,421 |
| Carbides, of silicon, whether or not chemically defined | $2,039 | | $13,916 | $2,400 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $41 | $2,617 | $797 | $974 |
| Total | $198,049 | $149,855 | $264,473 | $298,795 |
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