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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | $16,831,015 | $17,091,552 | $20,754,154 | $26,420,655 | $16,723,645 | $20,796,776 | $24,542,433 |
| Carbon electrodes, other than of a kind used for furnaces | $1,927,048 | $1,611,941 | $1,320,027 | $1,760,028 | $651,109 | $522,171 | $947,100 |
| Carbon brushes | $25,417,269 | $31,628,787 | $29,428,741 | $24,615,232 | $15,236,010 | $19,894,938 | $20,503,328 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $4,968,404 | $5,556,333 | $5,536,059 | $4,111,963 | $3,415,848 | $4,444,929 | $6,594,242 |
| Total | $49,143,736 | $55,888,613 | $57,038,981 | $56,907,878 | $36,026,612 | $45,658,814 | $52,587,103 |
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