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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, other than of a kind used for furnaces | $12,342 | $37,594 | $16,157 | $331 | $1,651 | $90 |
| Carbon brushes | | $374 | $49 | | $38 | $922 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $2,083 | $643 | | $5,383 | $994 | $24,095 |
| Total | $14,425 | $38,611 | $16,206 | $5,714 | $2,683 | $25,107 |
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