Commodity2005200620072008200920102011
Saturated acyclic hydrocarbons$38$998  $673$1,294$116
Ethylene$3,213 $618  $50$3,162
Propene (propylene)$39$67$235 $396$291$14
Butene (butylene) & isomers thereof$64$10,426$12,196$20$412$572$218
Buta-1,3-diene & isoprene     $249 
Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24)$3,768$7,432$1,261,233$2,609,092$17,057$14,341$7,467
Total$7,122$18,923$1,274,282$2,609,112$18,538$16,797$10,977