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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $1,252,842 | $261,276 | $32,600 | $383,854 | $4,464,794 | $27,236,761 | $40,818,833 |
| Carbon electrodes, other than of a kind used for furnaces | $36,419 | $83,435 | $137,650 | $290,781 | $1,134,501 | $2,587,810 | $1,437,692 |
| Carbon brushes | $176,492 | $53,816 | $81,787 | $237,886 | $107,605 | $177,336 | $525,293 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $1,406,726 | $1,605,152 | $3,501,008 | $5,854,557 | $5,304,796 | $1,168,420 | $1,680,079 |
| Total | $2,872,479 | $2,003,679 | $3,753,045 | $6,767,078 | $11,011,696 | $31,170,327 | $44,461,897 |
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