Commodity20052006200720082009
Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), in ...$10,716,403$17,143,767$24,451,654$21,014,321$18,366,457
Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ...$3,269,426$4,803,572$9,038,558$8,123,533$4,401,574
Total$13,985,829$21,947,339$33,490,212$29,137,854$22,768,031