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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Natural graphite, in powder/flakes | $19,392 | $25,781 | $31,578 | $86,091 | $18,899 | $92,443 |
| Natural graphite other than in powders/flakes | $22,376 | $4,559 | $7,771 | $10,760 | $2,523 | $135,710 |
| Total | $41,768 | $30,340 | $39,349 | $96,851 | $21,422 | $228,153 |
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