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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $16,049 | $424,697 | $635,115 | $1,853,717 | $3,181,034 | $1,660,651 |
| Carbon electrodes, other than of a kind used for furnaces | $117,883 | $108,881 | $271,834 | $192,571 | $334,066 | $131,295 |
| Carbon brushes | $3,304,069 | $2,956,334 | $1,028,429 | $3,437,149 | $3,574,137 | $5,134,006 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $1,777,088 | $1,336,228 | $731,024 | $891,219 | $472,279 | $327,253 |
| Total | $5,215,089 | $4,826,140 | $2,666,402 | $6,374,656 | $7,561,516 | $7,253,205 |
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