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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $35,182 | $405 | $40,452 | | $469,437 | $271,368 | $78 |
| Carbon electrodes, other than of a kind used for furnaces | $2,491 | $1,625 | $297,332 | $56,211 | $70,045 | $45 | $2,595 |
| Carbon brushes | $1,176 | $2,297 | $418 | $1,592 | $5,413 | $4,197 | $15,255 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $751 | $2,028 | $17,923 | $5,736 | $1,892 | $24 | $118 |
| Total | $39,600 | $6,355 | $356,125 | $63,539 | $546,787 | $275,634 | $18,046 |
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