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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   
Gulf Coast (PADD 3) Isobutane-Isobutylene Product Supplied (Thousand Barrels per Day)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1989 36 37 22 56 37 38 19 42 12 56 23 8
  1990 41 20 32 24 4 25 50 29 16 13 8 36
  1991 47 38 27 27 43 32 55 24 51 49 54 55
  1992 -27 121 30 34 25 32 32 25 32 55 64 61
  1993 45 49 54 64 26 49 36 64 41 58 66 59
  1994 59 54 69 66 52 73 116 87 63 68 78 85
  1995 63 70 48 68 75 85 52 66 102 66 74 56
  1996 70 61 79 80 91 90 73 75 112 59 93 40
  1997 71 89 86 83 66 73 58 82 97 105 87 90
  1998 73 95 58 95 73 96 102 76 89 78 77 93
  1999 90 102 67 60 78 99 108 85 96 81 86 91
  2000 96 109 83 87 83 89 89 97 88 106 89 75
  2001 71 86 76 103 88 124 102 91 100 109 81 98
  2002 87 58 96 72 110 109 92 105 92 86 105 96
  2003 85 95 100 100 57 52 76 76 75 32 112 80
  2004 63 73 42 52 59 43 27 32 42 44 41 40
  2005 37 36 50 32 43 59 67 65 65 52 60 65
  2006 37 52 40 27 18 51 67 33 62 25 19 26
  2007 30 47 40 17 21 39 30 30 17 10 26 47
  2008 18 29 28 12

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