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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Carbon electrodes, of a kind used for furnaces | $11,921,665 | $16,846,399 | $23,345,604 | $26,150,848 | $22,334,263 |
| Carbon electrodes, other than of a kind used for furnaces | $891,361 | $4,019,149 | $6,539,471 | $68,729,333 | $40,897,152 |
| Carbon brushes | $993,007 | $1,488,429 | $2,334,383 | $1,997,193 | $1,503,045 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $260,400 | $472,140 | $639,135 | $218,814 | $233,833 |
| Total | $14,066,433 | $22,826,117 | $32,858,593 | $97,096,188 | $64,968,293 |
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