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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. Normal Butane-Butylene Stock Change (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 1,871 -6,685 1,277 884 683 4,467 -4,205
  1990's 2,517 -351 1,362 4,480 -5,124 1,131 -2,827 381 3,772 -2,873
  2000's -154 5,640 -2,545 -1,833 1,226 -739 3,968 -3,550

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