|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Saturated acyclic hydrocarbons | $38,204 | $573 | $6,944 | $1,756 |
| Ethylene | $356 | | | $416 |
| Propene (propylene) | | $6,648 | $55 | $237 |
| Butene (butylene) & isomers thereof | $6 | | $53,532 | $6,529 |
| Buta-1,3-diene & isoprene | | $5 | | |
| Unsaturated acyclic hydrocarbons (excl. of 2901.21-2901.24) | $38,751 | $37,231 | $15,773 | $39,721 |
| Total | $77,317 | $44,457 | $76,304 | $48,659 |
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