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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $87 | | $1,074 | $86 | $254 | $71 | $10 |
| Carbon electrodes, other than of a kind used for furnaces | $5,788 | $6,143 | $9,671 | $3,225 | $4,554 | $7,095 | $9,358 |
| Carbon brushes | $4,884 | $16,841 | $8,075 | $8,526 | $12,837 | $3,808 | $11,756 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $77 | $123 | $266 | $18,300 | $1,225 | | $1,356 |
| Total | $10,836 | $23,107 | $19,086 | $30,137 | $18,870 | $10,974 | $22,480 |
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