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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $41,785,570 | $49,632,740 | $73,104,863 | $92,229,401 | $53,558,857 | $93,380,733 | $75,347,521 |
| Carbon electrodes, other than of a kind used for furnaces | $1,475,692 | $1,780,490 | $1,769,516 | $1,874,607 | $2,261,050 | $4,081,088 | $4,087,645 |
| Carbon brushes | $39,294,490 | $41,618,610 | $43,237,542 | $43,253,040 | $28,331,851 | $37,857,483 | $40,215,924 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $5,131,025 | $6,306,203 | $8,093,865 | $10,095,085 | $6,545,506 | $7,456,812 | $6,260,168 |
| Total | $87,686,777 | $99,338,043 | $126,205,786 | $147,452,133 | $90,697,264 | $142,776,116 | $125,911,258 |
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