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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), in ... | $1,373,214 | $1,982,239 | $2,362,337 | $2,001,710 | $1,441,995 | $1,410,287 |
| Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ... | $1,026,146 | $1,023,454 | $1,127,458 | $600,940 | $576,199 | $667,165 |
| Total | $2,399,360 | $3,005,693 | $3,489,795 | $2,602,650 | $2,018,194 | $2,077,452 |
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