|
| Commodity | 2005 | 2006 | 2007 |
| Carbides, of calcium, whether or not chemically defined | $1,702 | $11,582 | $2,933 |
| Carbides, of silicon, whether or not chemically defined | $605 | | $324 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $37,634 | $431 | $10,903 |
| Total | $39,941 | $12,013 | $14,160 |
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