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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $73,872 | $349,687 | $39,134 | $161,602 | | | $733,555 |
| Carbon electrodes, other than of a kind used for furnaces | $115,750 | $36,881 | $236,506 | $22,432 | $106,236 | $180,124 | $221,081 |
| Carbon brushes | $21,993 | $82,398 | $113,285 | $50,302 | $71,664 | $120,573 | $70,872 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $18,632,526 | $15,595,709 | $8,021,176 | $11,794,790 | $8,848,696 | $15,509,750 | $15,615,323 |
| Total | $18,844,141 | $16,064,675 | $8,410,101 | $12,029,126 | $9,026,596 | $15,810,447 | $16,640,831 |
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