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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $15,585,748 | $14,465,590 | $17,692,566 | $21,228,140 | $23,787,144 | $17,453,125 | $22,485,208 |
| Carbon electrodes, other than of a kind used for furnaces | $12,463,716 | $15,104,668 | $21,021,943 | $20,677,690 | $12,148,838 | $14,022,708 | $22,361,407 |
| Carbon brushes | $243,037 | $204,334 | $341,829 | $438,080 | $313,929 | $597,131 | $959,879 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $3,999,832 | $6,762,165 | $4,486,500 | $6,277,570 | $4,506,149 | $4,141,553 | $4,960,671 |
| Total | $32,292,333 | $36,536,757 | $43,542,838 | $48,621,480 | $40,756,060 | $36,214,517 | $50,767,165 |
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