Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
Tetrahydrofuran | $140 | | | | | |
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ... | | $164,000 | | | $20,000 | $2,292 |
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins) | | | $1,500 | $15,070 | | |
Total | $140 | $164,000 | $1,500 | $15,070 | $20,000 | $2,292 |
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