Commodity20052006200720082010
Tetrahydrofuran $19,050  $188
Furfuryl alcohol & tetrahydrofurfuryl alcohol  $933$318 
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ...    $378
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins)$37,122$56,212$75,742$69,889$134,431
Total$37,122$75,262$76,675$70,207$134,997