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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $29,263 | $804 | $37,829,754 | $33,276,273 | $14,187,491 | $20,280,442 | $20,002,833 |
| Carbon electrodes, other than of a kind used for furnaces | $42,294 | $32,155 | $71,646 | $141,420 | $22,046 | $51,512 | $24,695 |
| Carbon brushes | $202,916 | $230,011 | $331,828 | $235,997 | $176,372 | $237,932 | $379,199 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $77,608 | $94,590 | $93,619 | $58,224 | $61,564 | $126,968 | $1,249,274 |
| Total | $352,081 | $357,560 | $38,326,847 | $33,711,914 | $14,447,473 | $20,696,854 | $21,656,001 |
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