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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $15,636,762 | $22,685,718 | $33,145,199 | $29,619,511 | $8,605,478 | $13,343,955 | $17,780,212 |
| Carbon electrodes, other than of a kind used for furnaces | $1,108,648 | $454,882 | $30,546 | $34,125 | $95,653 | $27,474 | $73,097 |
| Carbon brushes | $5,210,217 | $5,413,408 | $6,342,209 | $6,907,211 | $3,598,647 | $3,583,737 | $5,482,167 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $1,032,363 | $1,177,629 | $1,481,236 | $3,069,336 | $359,623 | $2,303,233 | $228,766 |
| Total | $22,987,990 | $29,731,637 | $40,999,190 | $39,630,183 | $12,659,401 | $19,258,399 | $23,564,242 |
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