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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), in ... | $1,902,060 | $2,297,049 | $2,470,486 | $3,410,459 | $3,273,054 | $4,917,463 | $6,673,516 |
| Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ... | $307,283 | $235,931 | $444,329 | $1,069,003 | $1,040,383 | $1,512,159 | $1,974,826 |
| Total | $2,209,343 | $2,532,980 | $2,914,815 | $4,479,462 | $4,313,437 | $6,429,622 | $8,648,342 |
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