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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | | | | | $70 | | $140 |
| Carbon electrodes, other than of a kind used for furnaces | $2,398 | $3,590 | $3,190 | $335 | $48,776 | $117 | $134 |
| Carbon brushes | $25,123 | $34,155 | $70,381 | $61,618 | $63,295 | $75,019 | $102,700 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $7,430 | | $3,194 | $117 | $5,833 | $8,084 | $18,481 |
| Total | $34,951 | $37,745 | $76,765 | $62,070 | $117,974 | $83,220 | $121,455 |
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