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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural graphite, in powder/flakes | $2,306,086 | $2,433,436 | $1,746,010 | $1,874,580 | $1,162,569 | $1,210,506 | $1,380,613 |
| Natural graphite other than in powders/flakes | $357,078 | $657,248 | $2,052,202 | $1,615,439 | $1,096,973 | $2,629,076 | $2,949,186 |
| Total | $2,663,164 | $3,090,684 | $3,798,212 | $3,490,019 | $2,259,542 | $3,839,582 | $4,329,799 |
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