Commodity2005200620072008200920102011
Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), in ...$17,243,665$19,070,136$23,168,842$25,245,505$13,687,827$14,524,673$16,680,929
Articles of asphalt/sim. mat. (e.g., petroleum bitumen/coal tar pitch), oth ...$6,484,076$7,655,704$8,816,373$5,096,341$3,725,886$4,074,229$4,977,773
Total$23,727,741$26,725,840$31,985,215$30,341,846$17,413,713$18,598,902$21,658,702