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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $17,162,300 | $12,537,443 | $24,078,157 | $25,773,450 | $19,293,752 | $25,742,128 | $38,043,818 |
| Carbon electrodes, other than of a kind used for furnaces | $175,660 | $212,282 | $485,635 | $315,070 | $542,374 | $873,370 | $711,386 |
| Carbon brushes | $2,362,887 | $3,099,110 | $3,405,663 | $4,470,453 | $2,762,251 | $2,939,206 | $3,936,588 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $2,004,521 | $5,137,503 | $6,153,354 | $5,491,386 | $2,866,060 | $2,660,140 | $3,895,262 |
| Total | $21,705,368 | $20,986,338 | $34,122,809 | $36,050,359 | $25,464,437 | $32,214,844 | $46,587,054 |
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