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Note: These data are available in spreadsheet format by clicking the ''Download Series History'' link on the previous page (with drop-down menu bar at top).
 View History:    Monthly     Annual   
Midwest (PADD 2) Refinery and Blender Net Inputs of Isobutane/Isobutylene (Thousand Barrels)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  1980's 17,996 16,657 14,009 16,679 16,349 15,872 17,013 16,649 16,169
  1990's 16,301 17,222 16,507 16,567 14,765 14,327 12,664 10,785 10,455 10,305
  2000's 9,752 10,951 12,603 10,050 13,300 14,227 16,128 15,567


Updated on 6/26/2008
Source: U.S. Energy Information Administration
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