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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $13,080,236 | $11,687,800 | $21,048,967 | $72,218,800 | $49,428,983 | $59,342,574 | $61,180,461 |
| Carbon electrodes, other than of a kind used for furnaces | $170,153 | $65,640 | $115,253 | $2,541,054 | $1,628,128 | $3,321,603 | $4,718,382 |
| Carbon brushes | $700,406 | $251,343 | $445,397 | $1,123,361 | $944,890 | $1,283,448 | $717,490 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $299,454 | $1,248,015 | $1,454,785 | $1,592,720 | $430,984 | $1,030,754 | $847,890 |
| Total | $14,250,249 | $13,252,798 | $23,064,402 | $77,475,935 | $52,432,985 | $64,978,379 | $67,464,223 |
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