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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $9,945 | | | | |
| Carbon electrodes, other than of a kind used for furnaces | $10,015 | $113,351 | $154,776 | $6,449 | $31,179 |
| Carbon brushes | $12,080 | $69,657 | $281 | $80,199 | $79,717 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $2,724 | $43,170 | $96,803 | $114,750 | $139,312 |
| Total | $34,764 | $226,178 | $251,860 | $201,398 | $250,208 |
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