Commodity200620072008
Tetrahydrofuran$203,214$4,906$4,433
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ...$2,303$32$61,661
Coumarin, methylcoumarins & ethylcoumarins$21  
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins)$110,075$79,227$206,232
Total$315,613$84,165$272,326