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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $2,468,704 | $2,251,598 | $3,431,257 | $4,614,837 | $5,020,079 | $5,923,872 | $6,872,029 |
| Carbon electrodes, other than of a kind used for furnaces | $38,007 | $4,952 | $11,941 | $49,627 | $22,682 | $26,890 | $21,070 |
| Carbon brushes | $22,587 | $39,667 | $58,920 | $132,382 | $81,003 | $47,487 | $75,502 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $33,434 | $7,171 | $3,284 | $13,526 | $34,659 | $5,542 | $112,068 |
| Total | $2,562,732 | $2,303,388 | $3,505,402 | $4,810,372 | $5,158,423 | $6,003,791 | $7,080,669 |
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