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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $416 | $323 | $135 | | $181 | | $916 |
| Carbon electrodes, other than of a kind used for furnaces | $13,002 | $2,233 | $2,726 | $11,349 | $2,276 | $16,561 | $843 |
| Carbon brushes | $59,602 | $48,393 | $42,608 | $92,111 | $66,037 | $31,309 | $19,050 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $3,745 | $5,763 | $4,476 | $8,219 | $1,071 | $2,810 | $5,092 |
| Total | $76,765 | $56,712 | $49,945 | $111,679 | $69,565 | $50,680 | $25,901 |
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