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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $4,395,308 | $7,343,261 | $11,091,194 | $11,923,422 | $8,738,943 | $7,512,006 | $10,928,514 |
| Carbon electrodes, other than of a kind used for furnaces | $102,162 | $171,303 | $1,429,763 | $1,224,824 | $1,389,709 | $1,732,942 | $447,146 |
| Carbon brushes | $2,501,083 | $2,091,498 | $3,595,528 | $3,612,273 | $2,111,863 | $2,726,517 | $2,862,108 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $450,247 | $450,928 | $636,294 | $345,624 | $204,756 | $998,734 | $158,579 |
| Total | $7,448,800 | $10,056,990 | $16,752,779 | $17,106,143 | $12,445,271 | $12,970,199 | $14,396,347 |
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