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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $22,283,818 | $20,268,397 | $22,907,064 | $39,881,814 | $29,254,473 | $47,171,419 | $60,570,582 |
| Carbon electrodes, other than of a kind used for furnaces | $11,206,341 | $11,809,477 | $10,812,698 | $12,917,900 | $9,007,471 | $8,328,042 | $9,670,127 |
| Carbon brushes | $20,127,972 | $21,244,445 | $23,945,487 | $32,843,282 | $13,288,888 | $18,033,946 | $26,155,574 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $1,287,189 | $2,026,414 | $2,430,687 | $2,993,637 | $4,148,703 | $4,025,740 | $5,270,263 |
| Total | $54,905,320 | $55,348,733 | $60,095,936 | $88,636,633 | $55,699,535 | $77,559,147 | $101,666,546 |
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