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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural graphite, in powder/flakes | $14,975,091 | $13,362,538 | $14,292,077 | $11,900,948 | $6,564,342 | $7,191,571 | $8,183,164 |
| Natural graphite other than in powders/flakes | $2,211,201 | $3,089,040 | $3,013,690 | $2,433,720 | $2,038,005 | $1,668,670 | $2,036,663 |
| Total | $17,186,292 | $16,451,578 | $17,305,767 | $14,334,668 | $8,602,347 | $8,860,241 | $10,219,827 |
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