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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tetrahydrofuran | $17,234 | | | $6,837 | | | $24,678 |
| Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ... | | $8,306 | $9,565 | $4,197 | $96,962 | $42,605 | $11,271 |
| Coumarin, methylcoumarins & ethylcoumarins | | | $51,107 | | | | |
| Lactones (excl. coumarin, methylcoumarins & ethylcoumarins) | $18,994 | $39,475 | $4,316 | $292,733 | $110,080 | $59,147 | $25,975 |
| Total | $36,228 | $47,781 | $64,988 | $303,767 | $207,042 | $101,752 | $61,924 |
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