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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural graphite, in powder/flakes | $1,871,660 | $1,505,336 | $2,072,475 | $1,245,814 | $1,481,047 | $1,474,371 | $1,991,768 |
| Natural graphite other than in powders/flakes | $56,321 | $138,090 | $262,427 | $4,130,320 | $1,696,739 | $3,194,404 | $4,699,569 |
| Total | $1,927,981 | $1,643,426 | $2,334,902 | $5,376,134 | $3,177,786 | $4,668,775 | $6,691,337 |
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