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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $200,403 | $334,704 | $259,149 | $482,037 | $2,052,683 | $3,522,220 |
| Carbon electrodes, other than of a kind used for furnaces | $66,062 | $35,518 | $153,564 | $77,122 | $35,029 | $14,415 |
| Carbon brushes | $6,134 | $65,197 | $140,346 | $100,980 | $67,220 | $150,967 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $85,361 | $409,758 | $1,752,741 | $4,861,527 | $812,268 | $1,175,738 |
| Total | $357,960 | $845,177 | $2,305,800 | $5,521,666 | $2,967,200 | $4,863,340 |
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