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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $1,379,222 | $2,232,654 | $2,606,402 | $1,987,503 | $1,365,573 | $1,211,521 | $1,208,535 |
| Total | $1,379,222 | $2,232,654 | $2,606,402 | $1,987,503 | $1,365,573 | $1,211,521 | $1,208,535 |
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