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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 ... | $2,291,020 | $2,122,021 | $2,558,934 | $3,187,744 | $2,597,331 | $3,723,557 | $6,257,602 |
| Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ... | $1,332,368 | $639,502 | $550,591 | $1,451,655 | $990,029 | $1,179,173 | $417,186 |
| Total | $3,623,388 | $2,761,523 | $3,109,525 | $4,639,399 | $3,587,360 | $4,902,730 | $6,674,788 |
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