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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $422,476 | $823,905 | $11,497 | $33,334 | $479 | $18,396 | $70,496 |
| Carbon electrodes, other than of a kind used for furnaces | $1,915,892 | $923,476 | $19,473,790 | $139,111,804 | $142,188,043 | $128,010,842 | $139,427,660 |
| Carbon brushes | $6,935 | $16,403 | $2,444 | $8,986 | $12,405 | $13,296 | $15,139 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $37,803 | $55,027 | $2,637 | $30,974 | $27,006 | $10,654 | $29,824 |
| Total | $2,383,106 | $1,818,811 | $19,490,368 | $139,185,098 | $142,227,933 | $128,053,188 | $139,543,119 |
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