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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Carbides, of calcium, whether or not chemically defined | $391,592 | $509,234 | $140,289 | $275,746 | $452,645 |
| Carbides, of silicon, whether or not chemically defined | $25,863 | $5,124 | $3,247 | $3,099 | $9,091 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $78,139 | $20,929 | $130,662 | $85,468 | |
| Total | $495,594 | $535,287 | $274,198 | $364,313 | $461,736 |
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