Commodity2005200620072008200920102011
Petroleum bitumen $138    $677
Residues of petroleum oils/oils obt. from bituminous mins., other than petr ...$1,122$24,235$29,673$40,382$43,690$42,282$50,733
Total$1,122$24,373$29,673$40,382$43,690$42,282$51,410