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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tetrahydrofuran | $30,279,719 | $38,649,216 | $25,998,667 | $27,833,309 | $11,494,813 | $18,053,700 | $39,573,736 |
| Heterocyclic comps. cont. an unfused furan ring (whether or not hydrogenate ... | $5,588,691 | $2,917,971 | $2,623,996 | $1,480,936 | $1,223,552 | $12,882,468 | $55,213,788 |
| Coumarin, methylcoumarins & ethylcoumarins | $221,905 | $72,446 | $326,934 | $157,975 | $3,471 | $2,348 | $257,156 |
| Lactones (excl. coumarin, methylcoumarins & ethylcoumarins) | $42,982,821 | $46,975,311 | $33,231,581 | $34,340,004 | $27,884,067 | $36,195,491 | $33,289,170 |
| Total | $79,073,136 | $88,614,944 | $62,181,178 | $63,812,224 | $40,605,903 | $67,134,007 | $128,333,850 |
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