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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $55,749,484 | $56,272,747 | $79,099,394 | $92,342,926 | $61,017,337 | $66,288,151 | $83,304,600 |
| Carbon electrodes, other than of a kind used for furnaces | $12,091,717 | $28,779,532 | $43,565,493 | $20,247,511 | $19,093,852 | $14,758,032 | $13,467,369 |
| Carbon brushes | $31,525,235 | $52,921,905 | $59,433,930 | $67,883,904 | $62,403,805 | $84,885,309 | $90,814,857 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $13,751,837 | $16,671,173 | $16,685,040 | $31,829,437 | $28,913,012 | $77,327,763 | $122,256,310 |
| Total | $113,118,273 | $154,645,357 | $198,783,857 | $212,303,778 | $171,428,006 | $243,259,255 | $309,843,136 |
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