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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $664 | $1,047 | $29 | $2,100 | $3,474 | $51,789 | $3,277 |
| Carbon electrodes, other than of a kind used for furnaces | $16,283 | $65,292 | $15,150 | $57,058 | $66,930 | $70,079 | $187,561 |
| Carbon brushes | $96,051 | $156,719 | $144,508 | $137,944 | $177,112 | $151,749 | $112,852 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $144,870 | $29,641 | $54,205 | $38,613 | $77,672 | $74,153 | $34,619 |
| Total | $257,868 | $252,699 | $213,892 | $235,715 | $325,188 | $347,770 | $338,309 |
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