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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $143,839 | $77,044 | $36,914 | $75,679 | $37,418 | $106,235 | $370,590 |
| Carbon electrodes, other than of a kind used for furnaces | $1,518 | $6,254 | $24,481 | $20,645 | $43,231 | $37,371 | $138,113 |
| Carbon brushes | $32,229 | $19,530 | $43,573 | $41,470 | $43,327 | $65,194 | $46,081 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $9,256 | $15,088 | $37,889 | $81,014 | $4,440 | $10,012 | $21,581 |
| Total | $186,842 | $117,916 | $142,857 | $218,808 | $128,416 | $218,812 | $576,365 |
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