Commodity2005200620072008200920102011
Saturated acyclic hydrocarbons$18,383$20,052$46,639$10,435$10,888$13,832$45,723
Ethylene$2,687$4,424$14,397$12,761 $21,848$16,475
Butene (butylene) & isomers thereof$1,637$1,811$1,177$1,082$794$2,335 
Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24)$15,987$14,554$59,963$18,760$32,707$28,465$12,658
Total$38,694$40,841$122,176$43,038$44,389$66,480$74,856