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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $3,848,843 | $4,990,194 | $5,812,626 | $3,777,847 | $4,249,242 | $5,462,825 | $10,303,963 |
| Carbon electrodes, other than of a kind used for furnaces | $2,194,375 | $3,345,871 | $5,802,778 | $7,601,584 | $9,246,785 | $4,898,573 | $965,705 |
| Carbon brushes | $3,868,539 | $4,775,135 | $4,565,142 | $6,840,377 | $2,739,438 | $4,211,929 | $4,375,854 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $2,866,857 | $238,357 | $234,745 | $1,634,876 | $1,224,219 | $1,039,262 | $350,196 |
| Total | $12,778,614 | $13,349,557 | $16,415,291 | $19,854,684 | $17,459,684 | $15,612,589 | $15,995,718 |
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