|
| Commodity | 2005 | 2006 | 2007 |
| Carbides, of calcium, whether or not chemically defined | $150,932 | $144,559 | $102,924 |
| Carbides, of silicon, whether or not chemically defined | | | $1,961 |
| Carbides other than of carbon/silicon, whether or not chemically defined | | | $48,750 |
| Total | $150,932 | $144,559 | $153,635 |
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