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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural graphite, in powder/flakes | $4,199,829 | $3,525,538 | $5,492,046 | $5,348,596 | $6,185,112 | $8,639,410 | $16,266,265 |
| Natural graphite other than in powders/flakes | $208,608 | $166,048 | $476,905 | $575,709 | $907,222 | $1,319,082 | $1,319,139 |
| Total | $4,408,437 | $3,691,586 | $5,968,951 | $5,924,305 | $7,092,334 | $9,958,492 | $17,585,404 |
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