|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | | | | | $1,000 | |
| Carbides, of silicon, whether or not chemically defined | $1,000 | | | $358,000 | $150,000 | $203,000 | $67,000 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $1,081,000 | $427,000 | $304,000 | $4,000 | $579,000 | $307,000 | $32,000 |
| Total | $1,082,000 | $427,000 | $304,000 | $362,000 | $729,000 | $511,000 | $99,000 |
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