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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $159,195 | $219,156 | $199,016 | $367,268 | $209,190 | $1,179,586 | $290,049 |
| Carbon electrodes, other than of a kind used for furnaces | $4,179,843 | $5,085,709 | $6,497,062 | $6,548,557 | $7,029,719 | $9,952,980 | $7,195,939 |
| Carbon brushes | $2,187,703 | $2,600,101 | $2,871,324 | $3,760,665 | $4,335,792 | $3,730,262 | $2,820,385 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $7,079,356 | $5,798,529 | $8,024,371 | $6,062,501 | $3,073,920 | $3,692,338 | $3,059,285 |
| Total | $13,606,097 | $13,703,495 | $17,591,773 | $16,738,991 | $14,648,621 | $18,555,166 | $13,365,658 |
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