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| Commodity | 2005 | 2006 | 2007 |
| Carbides, of calcium, whether or not chemically defined | $1,001,289 | $875,314 | $1,252,331 |
| Carbides, of silicon, whether or not chemically defined | $77,766 | $57,119 | $41,844 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $5,838 | $61,201 | $35,074 |
| Total | $1,084,893 | $993,634 | $1,329,249 |
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