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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $701,050 | $250,680 | $159,704 | $95,084 | $46,672 | $23,186 | $15,781 |
| Carbon electrodes, other than of a kind used for furnaces | $503,731 | $664,364 | $2,546,831 | $1,118,235 | $610,116 | $1,761,880 | $2,595,333 |
| Carbon brushes | $1,285,315 | $990,941 | $994,690 | $1,070,316 | $969,446 | $959,621 | $1,225,217 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $161,382 | $498,157 | $2,443,197 | $652,287 | $576,741 | $300,783 | $206,736 |
| Total | $2,651,478 | $2,404,142 | $6,144,422 | $2,935,922 | $2,202,975 | $3,045,470 | $4,043,067 |
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