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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $3,793,919 | $5,188,656 | $9,129,989 | $3,319,327 | $4,623,932 | $1,890,909 |
| Carbon electrodes, other than of a kind used for furnaces | $2,527,773 | $2,028,317 | $2,399,470 | $13,062 | $2,659,643 | $603,177 |
| Carbon brushes | $48,381 | $53,475 | $105,230 | $36,011 | $62,526 | $46,964 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $44,316 | $57,608 | $10,698 | $57,579 | $22,068 | $30,025 |
| Total | $6,414,389 | $7,328,056 | $11,645,387 | $3,425,979 | $7,368,169 | $2,571,075 |
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