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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $41,747,283 | $37,782,454 | $59,160,151 | $45,169,328 | $50,595,286 | $38,833,001 | $55,523,604 |
| Carbon electrodes, other than of a kind used for furnaces | $729,192 | $682,383 | $579,483 | $4,614,968 | $3,460,096 | $7,535,987 | $22,783,203 |
| Carbon brushes | $1,718,239 | $1,526,476 | $2,257,289 | $6,923,553 | $7,866,457 | $11,312,477 | $10,414,878 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $6,684,720 | $6,344,632 | $5,609,779 | $12,303,009 | $9,604,854 | $10,025,880 | $14,579,936 |
| Total | $50,879,434 | $46,335,945 | $67,606,702 | $69,010,858 | $71,526,693 | $67,707,345 | $103,301,621 |
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