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| Commodity | 2005 | 2007 | 2008 |
| Carbides, of calcium, whether or not chemically defined | $3,467,345 | $5,127,526 | $8,477,202 |
| Carbides, of silicon, whether or not chemically defined | $495,495 | $1,805,552 | $2,507,579 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $169,778 | $75,887 | $118,443 |
| Total | $4,132,618 | $7,008,965 | $11,103,224 |
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