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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Saturated acyclic hydrocarbons | $174,000 | $72,549 | $136,996 | $48,977 | $225,634 | $28,553 | $34,042 |
| Ethylene | | | $782 | $4,698 | $3,705 | | |
| Propene (propylene) | | | | | $1,171 | | |
| Butene (butylene) & isomers thereof | | | $289 | | | | |
| Buta-1,3-diene & isoprene | | | $109 | | | | $168 |
| Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24) | $1,000 | $3,016 | $702 | $554 | $1,294 | $18,676 | $11,437 |
| Total | $175,000 | $75,565 | $138,878 | $54,229 | $231,804 | $47,229 | $45,647 |
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