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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon electrodes, of a kind used for furnaces | $6,040,553 | $9,308,939 | $14,541,311 | $29,991,330 | $26,812,103 | $30,624,080 |
| Carbon electrodes, other than of a kind used for furnaces | $2,377,855 | $2,312,714 | $1,949,996 | $4,882,402 | $2,828,047 | $2,512,880 |
| Carbon brushes | $2,572,358 | $3,953,363 | $3,908,211 | $4,921,019 | $4,816,388 | $10,441,890 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $1,065,647 | $5,714,547 | $4,687,092 | $4,553,637 | $7,112,819 | $7,584,210 |
| Total | $12,056,413 | $21,289,563 | $25,086,610 | $44,348,388 | $41,569,357 | $51,163,060 |
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