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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $137,676 | $13,984 | $224,559 | $56,149 | $33,976 | $18,706 | $26,076 |
| Carbon electrodes, other than of a kind used for furnaces | $121,296 | $9,886 | $25,404 | $43,981 | $29,762 | $54,585 | $134,483 |
| Carbon brushes | $52,623 | $78,017 | $105,413 | $72,235 | $90,780 | $158,779 | $130,544 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $548,406 | $27,399 | $102,208 | $217,898 | $77,029 | $90,094 | $76,281 |
| Total | $860,001 | $129,286 | $457,584 | $390,263 | $231,547 | $322,164 | $367,384 |
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