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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbides, of calcium, whether or not chemically defined | $2,488,000 | $2,248,000 | $1,472,000 | $2,887,000 | $2,050,000 | $1,769,000 | $1,290,000 |
| Carbides, of silicon, whether or not chemically defined | $7,153,000 | $23,628,000 | $47,468,000 | $34,368,000 | $22,365,000 | $32,991,000 | $60,239,000 |
| Carbides other than of carbon/silicon, whether or not chemically defined | $44,000 | $27,000 | $110,000 | $84,000 | $21,000 | $21,000 | $221,000 |
| Total | $9,685,000 | $25,903,000 | $49,050,000 | $37,339,000 | $24,436,000 | $34,781,000 | $61,750,000 |
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