Commodity200520062007200820092011
Propene (propylene)     $575
Butene (butylene) & isomers thereof $69    
Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24)$998 $22,796$493$48,353$12,298
Total$998$69$22,796$493$48,353$12,873