Commodity2005200620072008200920102011
Tetrahydrofuran$3,612 $2,149 $219$34 
2-Furaldehyde (furfuraldehyde)    $14  
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ...$81 $21$387$47$224$35,783
Coumarin, methylcoumarins & ethylcoumarins      $2,846
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins)$982$32$52 $49$52$2,276
Total$4,675$32$2,222$387$329$310$40,905