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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $211,688,000 | $245,716,000 | $333,353,000 | $341,841,000 | $234,983,000 | $235,067,224 | $288,338,870 |
| Carbon electrodes, other than of a kind used for furnaces | $74,340,000 | $85,856,000 | $128,063,000 | $114,652,000 | $85,779,000 | $60,436,658 | $52,538,619 |
| Carbon brushes | $90,886,000 | $101,603,000 | $124,316,000 | $135,982,000 | $122,727,000 | $136,430,336 | $145,564,784 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $18,482,000 | $20,883,000 | $19,600,000 | $82,236,000 | $65,745,000 | $82,659,837 | $101,498,960 |
| Total | $395,396,000 | $454,058,000 | $605,332,000 | $674,711,000 | $509,234,000 | $514,594,055 | $587,941,233 |
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