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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $539,752 | $631,940 | $1,109,243 | $929,829 | $7,572,198 | $9,408,872 |
| Carbon electrodes, other than of a kind used for furnaces | $214,476,693 | $245,866,047 | $295,275,444 | $377,270,365 | $314,474,340 | $258,977,410 |
| Carbon brushes | $12,531,195 | $10,340,948 | $11,237,946 | $11,048,903 | $13,691,907 | $10,042,850 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $15,912,727 | $26,825,405 | $27,455,128 | $28,892,482 | $17,420,101 | $18,410,565 |
| Total | $243,460,367 | $283,664,340 | $335,077,761 | $418,141,579 | $353,158,546 | $296,839,697 |
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