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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbides, of calcium, whether or not chemically defined | $110,193 | $39,587 | $21,306 | $8,806 | $697 | $45,345 |
| Carbides, of silicon, whether or not chemically defined | $6,840,549 | $7,947,302 | $8,586,707 | $14,353,476 | $16,544,880 | $14,232,151 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $4,162,743 | $4,018,907 | $7,852,052 | $8,584,174 | $1,934,431 | $2,109,732 |
| Total | $11,113,485 | $12,005,796 | $16,460,065 | $22,946,456 | $18,480,008 | $16,387,228 |
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