|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | | $11,028 | $3,528 | $32,781 | $1 | $8,290 | |
| Carbides, of silicon, whether or not chemically defined | | | $62,054 | | | $292 | $193 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $10,738 | $21,809 | $2,944 | $6,763 | $15,857 | $68,960 | $9,346 |
| Total | $10,738 | $32,837 | $68,526 | $39,544 | $15,858 | $77,542 | $9,539 |
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