Commodity20052006200720082010
Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), in ...$11,747,793$19,700,649$21,770,746$25,534,485$51,155,292
Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ...$8,520,707$16,894,766$37,407,175$49,556,205$76,614,086
Total$20,268,500$36,595,415$59,177,921$75,090,690$127,769,378