Commodity2005200620072008200920102011
Tetrahydrofuran   $22,542$904$1,843$5,537
Furfuryl alcohol & tetrahydrofurfuryl alcohol $217     
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ...    $725$6,703 
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins)$8,338$4,374$9,507$23,069$15,038$15,402$23,740
Total$8,338$4,591$9,507$45,611$16,667$23,948$29,277