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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $8,962 | $245,322 | $478,881 | $330,412 | $280,371 | $1,263,434 | $350,293 |
| Carbon electrodes, other than of a kind used for furnaces | $4,491,703 | $10,437,186 | $16,015,511 | $4,807,354 | $8,453,412 | $8,346,947 | $2,622,352 |
| Carbon brushes | $1,709,184 | $2,216,086 | $3,456,122 | $3,985,851 | $4,570,606 | $7,000,683 | $8,508,259 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $2,167,779 | $3,361,027 | $1,874,785 | $1,323,841 | $1,352,455 | $2,885,217 | $8,787,325 |
| Total | $8,377,628 | $16,259,621 | $21,825,299 | $10,447,458 | $14,656,844 | $19,496,281 | $20,268,229 |
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