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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Saturated acyclic hydrocarbons | $8,277 | $14,312 | $18,144 | $4,089 | $8,348 | $6,291 |
| Propene (propylene) | $722 | $1,796 | $3,292 | $4,131 | $3,020 | $4,037 |
| Butene (butylene) & isomers thereof | | | | $70 | | $75 |
| Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24) | $16,002 | $8,833 | $12,260 | $4,345 | $6,300 | $1,068 |
| Total | $25,001 | $24,941 | $33,696 | $12,635 | $17,668 | $11,471 |
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