Commodity2005200620072008200920102011
Petroleum bitumen$156,547$10,878$6,859$21,808$10,315$19,817$6,795
Residues of petroleum oils/oils obt. from bituminous mins., other than petr ...$104 $38,582$1,483$4,231$3,328 
Total$156,651$10,878$45,441$23,291$14,546$23,145$6,795