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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $4,831,846 | $6,056,259 | $9,753,571 | $9,939,176 | $11,279,678 | $14,987,712 | $8,492,102 |
| Carbon electrodes, other than of a kind used for furnaces | $1,089,010 | $300,868 | $498,945 | $847,750 | $485,727 | $398,724 | $544,144 |
| Carbon brushes | $935,404 | $964,066 | $1,080,435 | $1,493,538 | $1,420,002 | $1,862,053 | $1,391,667 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $586,359 | $754,312 | $850,117 | $744,609 | $779,352 | $904,129 | $978,671 |
| Total | $7,442,619 | $8,075,505 | $12,183,068 | $13,025,073 | $13,964,759 | $18,152,618 | $11,406,584 |
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