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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 ... | $2,194,274 | $2,193,324 | $3,229,639 | $3,813,921 | $3,408,202 | $4,111,982 | $3,744,023 |
| Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ... | $1,828,439 | $1,652,538 | $2,021,239 | $2,393,380 | $1,478,516 | $1,534,887 | $1,595,247 |
| Total | $4,022,713 | $3,845,862 | $5,250,878 | $6,207,301 | $4,886,718 | $5,646,869 | $5,339,270 |
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