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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $63,141,000 | $72,487,000 | $89,748,000 | $113,864,000 | $65,832,000 | $96,804,911 | $112,350,266 |
| Carbon electrodes, other than of a kind used for furnaces | $48,989,000 | $49,385,000 | $84,181,000 | $57,069,000 | $48,128,000 | $60,240,084 | $68,207,837 |
| Carbon brushes | $36,721,000 | $37,069,000 | $38,146,000 | $41,934,000 | $30,018,000 | $36,646,968 | $46,091,580 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $13,322,000 | $17,775,000 | $9,688,000 | $11,720,000 | $10,762,000 | $8,689,760 | $11,970,098 |
| Total | $162,173,000 | $176,716,000 | $221,763,000 | $224,587,000 | $154,740,000 | $202,381,723 | $238,619,781 |
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