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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $2,309,000 | $3,447,000 | $5,170,000 | $7,090,000 | $1,158,000 | $1,060,000 | $2,272,000 |
| Carbon electrodes, other than of a kind used for furnaces | $25,657,000 | $3,181,000 | $311,000 | $486,000 | $210,000 | $308,000 | $484,000 |
| Carbon brushes | $17,687,000 | $15,893,000 | $23,461,000 | $25,883,000 | $13,452,000 | $19,456,000 | $23,025,000 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $448,000 | $4,361,000 | $3,750,000 | $4,779,000 | $1,714,000 | $2,065,000 | $3,652,000 |
| Total | $46,101,000 | $26,882,000 | $32,692,000 | $38,238,000 | $16,534,000 | $22,889,000 | $29,433,000 |
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