Commodity200620072008200920102011
Tetrahydrofuran   $117  
2-Furaldehyde (furfuraldehyde)   $185  
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ...$611 $786$1,603$476$25
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins) $130   $245
Total$611$130$786$1,905$476$270