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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $519,874 | $119,045 | $130,031 | $747,928 | $82,922 | $183,733 | $309,238 |
| Carbon electrodes, other than of a kind used for furnaces | $56,417 | $48,667 | $96,599 | $819,905 | $93,203 | $255,168 | $462,233 |
| Carbon brushes | $2,555,718 | $5,355,795 | $6,782,316 | $7,162,204 | $10,313,498 | $18,027,248 | $22,313,656 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $437,226 | $455,852 | $1,258,210 | $1,719,250 | $2,238,269 | $1,795,897 | $2,484,829 |
| Total | $3,569,235 | $5,979,359 | $8,267,156 | $10,449,287 | $12,727,892 | $20,262,046 | $25,569,956 |
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