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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | | $22,390 | | $286 | | |
| Carbon electrodes, other than of a kind used for furnaces | $4,531 | $368 | $1,808 | $17,403 | $1,117 | $1,532 |
| Carbon brushes | $142 | $415 | $169 | $200 | $131 | $807 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $108 | $57 | $437 | $52,649 | $1,307 | $935 |
| Total | $4,781 | $23,230 | $2,414 | $70,538 | $2,555 | $3,274 |
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