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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | | $480 | | | $330 | $33 |
| Carbon electrodes, other than of a kind used for furnaces | $4,492 | | $4,428 | $837 | $4,472 | $2,511 |
| Carbon brushes | $8,126 | $6,033 | $3,261 | $8,806 | $5,472 | $3,893 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | | $87 | $771 | $1,161 | $339 | $862 |
| Total | $12,618 | $6,600 | $8,460 | $10,804 | $10,613 | $7,299 |
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