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| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 |
| Carbides, of calcium, whether or not chemically defined | $218,401 | $244,626 | $63,309 | $686,641 | $386,630 |
| Carbides, of silicon, whether or not chemically defined | $225,739 | $376,412 | $1,076,898 | $3,968,892 | $501,657 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $202,134 | $253,429 | $171,325 | $186,023 | $190,717 |
| Total | $646,274 | $874,467 | $1,311,532 | $4,841,556 | $1,079,004 |
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