Commodity200520062007200820092010
Petroleum coke, calcined$1,062   $2,867 
Petroleum bitumen  $515   
Residues of petroleum oils/oils obt. from bituminous mins., other than petr ...$59,649$114,636$179,706$173,856$98,261$70,061
Total$60,711$114,636$180,221$173,856$101,128$70,061