|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tetrahydrofuran | $2,600 | $3,214 | $511 | $306 | $892 | | |
| Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ... | | $36 | | | | | $1,729 |
| Lactones (excl. coumarin, methylcoumarins & ethylcoumarins) | $1,560 | $286 | $1,719 | $5,058 | $3,730 | $1,542 | $3,087 |
| Total | $4,160 | $3,536 | $2,230 | $5,364 | $4,622 | $1,542 | $4,816 |
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