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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $4,015,638 | $4,664,084 | $6,172,003 | $4,854,649 | $4,178,046 | $7,159,469 |
| Carbon electrodes, other than of a kind used for furnaces | $172,346 | $8,592 | $23,021 | $17,902 | $3,890 | $18,705 |
| Carbon brushes | $135,826 | $128,067 | $164,093 | $138,647 | $127,576 | $175,659 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $114,009 | $35,416 | $12,794 | $30,033 | $33,717 | $40,562 |
| Total | $4,437,819 | $4,836,159 | $6,371,911 | $5,041,231 | $4,343,229 | $7,394,395 |
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