Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
Tetrahydrofuran | $7,805 | $54,476 | $66,619 | $69,638 | $24,819 | $75,734 | $58,708 |
Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ... | | | $4,842 | $9,243 | | $50,604 | |
Lactones (excl. coumarin, methylcoumarins & ethylcoumarins) | $58,653 | $117,406 | $10,910 | $18,972 | $172,473 | $10,003 | $29,137 |
Total | $66,458 | $171,882 | $82,371 | $97,853 | $197,292 | $136,341 | $87,845 |
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