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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Carbon electrodes, of a kind used for furnaces | $424 | | $347 | | $535 |
| Carbon electrodes, other than of a kind used for furnaces | $8,259 | $1,314 | $3,854 | $6,261 | $5,337 |
| Carbon brushes | $4,820 | $2,660 | $6,345 | $2,850 | $2,895 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $13,920 | $23,295 | $19,069 | $68,497 | $7,292 |
| Total | $27,423 | $27,269 | $29,615 | $77,608 | $16,059 |
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