Commodity200520062007200920102011
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ...     $2,426
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins)$1,365$9,778$30,507$3,333$3,625$12,954
Total$1,365$9,778$30,507$3,333$3,625$15,380