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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, other than of a kind used for furnaces | $17,100 | $12,200 | $9,500 | $52,600 | $8,100 | $400 | |
| Carbon brushes | $3,800 | $18,300 | $25,400 | $4,700 | $25,700 | $31,000 | $53,700 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | | $1,200 | | $1,300 | $800 | $2,500 | $1,900 |
| Total | $20,900 | $31,700 | $34,900 | $58,600 | $34,600 | $33,900 | $55,600 |
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