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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $15,509,627 | $20,694,809 | $24,540,376 | $23,041,633 | $11,290,112 | $26,475,459 | $26,524,956 |
| Carbon electrodes, other than of a kind used for furnaces | $4,019,180 | $5,645,584 | $3,963,116 | $3,753,395 | $360,066 | $419,342 | $1,409,433 |
| Carbon brushes | $4,796,518 | $8,220,671 | $10,087,960 | $10,164,328 | $9,804,837 | $8,738,825 | $10,039,390 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $7,119,547 | $6,623,484 | $6,156,249 | $5,081,566 | $1,462,289 | $809,709 | $1,419,111 |
| Total | $31,444,872 | $41,184,548 | $44,747,701 | $42,040,922 | $22,917,304 | $36,443,335 | $39,392,890 |
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