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| Commodity | 2005 | 2006 | 2007 |
| Carbides, of calcium, whether or not chemically defined | $49,852 | $4,598 | $13,707 |
| Carbides, of silicon, whether or not chemically defined | $22,946 | $202,302 | $244,861 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $124,568 | $13,097 | $47,898 |
| Total | $197,366 | $219,997 | $306,466 |
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