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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $47,243,800 | $61,929,894 | $81,267,218 | $90,128,969 | $64,084,741 | $57,126,711 | $62,273,252 |
| Carbon electrodes, other than of a kind used for furnaces | $9,567,215 | $8,574,136 | $14,853,468 | $16,149,451 | $14,104,417 | $11,312,942 | $10,290,984 |
| Carbon brushes | $14,776,986 | $12,865,598 | $13,372,513 | $14,487,355 | $14,294,567 | $15,946,808 | $22,460,392 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $8,702,445 | $12,495,212 | $13,308,004 | $13,936,269 | $14,704,014 | $15,329,136 | $23,014,179 |
| Total | $80,290,446 | $95,864,840 | $122,801,203 | $134,702,044 | $107,187,739 | $99,715,597 | $118,038,807 |
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