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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $217 | | | $22 | $860 | $11 |
| Carbon electrodes, other than of a kind used for furnaces | $5,223 | $7,923 | $5,963 | $9,146 | $8,290 | $3,523 |
| Carbon brushes | $8,861 | $3,900 | $13,360 | $11,284 | $10,879 | $4,407 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $2,177 | $3,643 | $5,088 | $273 | $209 | $1,925 |
| Total | $16,478 | $15,466 | $24,411 | $20,725 | $20,238 | $9,866 |
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