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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $8,050 | $16,382 | $25,118 | | $7,625 | $12,241 | $16,540 |
| Carbon electrodes, other than of a kind used for furnaces | $27,412 | $35,445 | $66,688 | $20,691 | $5,180 | $61,852 | $16,441 |
| Carbon brushes | $36,157 | $66,942 | $107,739 | $121,609 | $98,651 | $70,857 | $96,923 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $48,089 | $47,538 | $31,848 | $41,650 | $27,364 | $44,070 | $26,679 |
| Total | $119,708 | $166,307 | $231,393 | $183,950 | $138,820 | $189,020 | $156,583 |
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