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| Commodity | 2005 | 2006 | 2007 | 2009 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $38,060 | $48,557 | $40,704 | $44,888 | $11,560 |
| Carbides, of silicon, whether or not chemically defined | $2,902 | $4,801 | $1,539 | $13,262 | |
| Total | $40,962 | $53,358 | $42,243 | $58,150 | $11,560 |
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