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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural graphite, in powder/flakes | $2,670,990 | $2,697,546 | $3,687,265 | $4,530,018 | $1,986,052 | $3,340,496 | $7,284,926 |
| Natural graphite other than in powders/flakes | $2,129,861 | $3,063,426 | $2,548,083 | $3,200,001 | $879,671 | $2,457,561 | $241,474 |
| Total | $4,800,851 | $5,760,972 | $6,235,348 | $7,730,019 | $2,865,723 | $5,798,057 | $7,526,400 |
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