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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $467,000 | $436,459 | $634,741 | $582,777 | $579,211 | $434,790 | $616,469 |
| Carbides, of silicon, whether or not chemically defined | $97,000 | $51,810 | $93,219 | $47,125 | $98,685 | $52,561 | $92,758 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $8,000 | $3,445 | $77,562 | $27,493 | $13,834 | $47,507 | $7,187 |
| Total | $572,000 | $491,714 | $805,522 | $657,395 | $691,730 | $534,858 | $716,414 |
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