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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $5,428,923 | $4,707,350 | $4,990,493 | $4,921,446 | $7,992,624 | $13,707,125 |
| Carbon electrodes, other than of a kind used for furnaces | $23,137,879 | $30,933,834 | $39,991,196 | $45,781,233 | $14,908,406 | $2,016,495 |
| Carbon brushes | $8,346,643 | $8,191,065 | $9,271,391 | $8,908,701 | $5,862,652 | $7,656,316 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $3,874,961 | $10,106,920 | $10,392,742 | $11,502,038 | $6,395,494 | $12,841,398 |
| Total | $40,788,406 | $53,939,169 | $64,645,822 | $71,113,418 | $35,159,176 | $36,221,334 |
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