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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $24,849,505 | $50,378,333 | $45,425,723 | $75,025,706 | $36,308,866 | $56,359,190 | $51,122,369 |
| Carbon electrodes, other than of a kind used for furnaces | $92,373,230 | $114,949,880 | $122,627,885 | $172,109,672 | $173,203,874 | $176,804,614 | $194,937,816 |
| Carbon brushes | $7,696,580 | $8,104,369 | $8,349,228 | $8,476,423 | $7,999,668 | $8,647,489 | $8,799,031 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $17,162,766 | $20,507,289 | $20,919,767 | $23,504,366 | $11,308,468 | $12,969,289 | $20,450,758 |
| Total | $142,082,081 | $193,939,871 | $197,322,603 | $279,116,167 | $228,820,876 | $254,780,582 | $275,309,974 |
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