Commodity200520062007200820092010
Saturated acyclic hydrocarbons $200 $61 $73
Propene (propylene) $394$317   
Butene (butylene) & isomers thereof$24,073$30,606$22,565$26,320$3,793$18,815
Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24)$1,028 $10,518$18,580$1,396$4,926
Total$25,101$31,200$33,400$44,961$5,189$23,814