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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $1,098,300 | $1,062,800 | $883,400 | $1,249,200 | $771,500 | $848,600 | $739,900 |
| Carbides, of silicon, whether or not chemically defined | $481,500 | $1,103,400 | $3,207,600 | $5,259,200 | $4,692,000 | $6,517,600 | $8,013,300 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $21,600 | $51,800 | $44,700 | $60,100 | $7,400 | $26,400 | $21,300 |
| Total | $1,601,400 | $2,218,000 | $4,135,700 | $6,568,500 | $5,470,900 | $7,392,600 | $8,774,500 |
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