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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $32,971,715 | $43,080,515 | $63,162,643 | $54,638,066 | $40,498,938 | $64,388,267 | $28,359,679 |
| Carbon electrodes, other than of a kind used for furnaces | $2,555,267 | $2,786,313 | $2,189,937 | $1,897,882 | $1,765,155 | $5,384,951 | $3,005,524 |
| Carbon brushes | $2,814,763 | $4,290,782 | $3,204,506 | $3,018,536 | $2,845,032 | $2,424,806 | $4,510,780 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $15,411,077 | $20,456,235 | $18,081,273 | $24,848,100 | $20,325,173 | $21,985,521 | $21,038,415 |
| Total | $53,752,822 | $70,613,845 | $86,638,359 | $84,402,584 | $65,434,298 | $94,183,545 | $56,914,398 |
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