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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Carbides, of calcium, whether or not chemically defined | $75,958 | $18,891 | $26,297 | $137,343 |
| Carbides, of silicon, whether or not chemically defined | $130 | $680 | $13 | |
| Carbides other than of carbon/silicon, whether or not chemically defined | $12,089 | $30,699 | $1,166 | $9,019 |
| Total | $88,177 | $50,270 | $27,476 | $146,362 |
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