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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   
U.S. Isobutane-Isobutylene Product Supplied (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 1,167 -16 289 2,730 8,846 14,829 18,324 18,320 9,163
  1990's 6,923 12,852 13,191 17,703 25,981 24,665 29,168 33,785 33,563 34,598
  2000's 37,054 33,271 29,213 25,875 10,948 11,128 5,394 1,734

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