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Download Data (XLS File) |
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| U.S. Isobutane-Isobutylene Stock Change (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 21 | 6 | -8 | 15 | -5 | -4 | 3 | -10 | -8 | -3 | 0 | -12 |
| 1982 | -21 | 7 | -22 | -18 | 13 | -2 | 9 | 13 | 20 | 17 | 2 | -31 |
| 1983 | -35 | 2 | 11 | 33 | 16 | 57 | 9 | -21 | -7 | 29 | -12 | -26 |
| 1984 | -33 | 8 | -16 | -9 | 2 | 26 | -13 | -8 | 0 | 8 | -20 | 1 |
| 1985 | -13 | -34 | 8 | -12 | 8 | 1 | -9 | -8 | -14 | 15 | -8 | 8 |
| 1986 | -16 | 2 | 10 | 24 | 0 | 28 | 28 | 27 | -4 | -12 | 6 | -53 |
| 1987 | -23 | -33 | -5 | 7 | 41 | -41 | 1 | 22 | 60 | 21 | 2 | 9 |
| 1988 | -35 | -24 | -1 | 13 | -8 | 15 | 15 | 14 | 16 | -11 | -21 | -53 |
| 1989 | -15 | 11 | 25 | 7 | 15 | -19 | 5 | 0 | 9 | -2 | -9 | -25 |
| 1990 | -42 | 25 | 18 | 13 | 34 | 20 | 2 | 25 | 21 | -4 | -18 | -36 |
| 1991 | -23 | 0 | -3 | -15 | 7 | 22 | -14 | 31 | -4 | -2 | -26 | -30 |
| 1992 | 75 | -69 | 14 | 5 | 6 | -35 | -9 | 37 | 53 | 26 | 1 | -19 |
| 1993 | -6 | -6 | 13 | 21 | 61 | 12 | 13 | -23 | 8 | -30 | -57 | -24 |
| 1994 | -7 | 16 | 11 | -19 | -14 | -20 | 31 | 35 | -26 | -35 | -42 | |
| 1995 | -3 | -21 | 6 | 19 | 21 | 8 | 20 | 7 | -31 | -11 | -34 | -12 |
| 1996 | -21 | -10 | 13 | 19 | -4 | 30 | 30 | 16 | -17 | 12 | -47 | -7 |
| 1997 | -20 | -33 | -2 | 30 | 32 | 18 | 22 | 10 | 11 | -21 | -25 | -8 |
| 1998 | 11 | -7 | 19 | -2 | 6 | 7 | -11 | 14 | -3 | -30 | -20 | -15 |
| 1999 | -7 | 7 | -3 | 13 | 9 | 0 | 9 | -16 | -12 | 4 | -16 | -22 |
| 2000 | -18 | -1 | -5 | 6 | 13 | 36 | 32 | 2 | -18 | -26 | -23 | -9 |
| 2001 | -5 | 3 | 20 | -1 | 41 | -1 | -12 | 21 | 1 | -18 | -21 | -25 |
| 2002 | -4 | 36 | 9 | 24 | -1 | -13 | -5 | 8 | 2 | -2 | -13 | -19 |
| 2003 | -12 | -4 | -12 | 7 | 8 | 29 | -5 | 3 | 23 | 35 | -38 | -45 |
| 2004 | -12 | -11 | 39 | 5 | -9 | -15 | 22 | 16 | 15 | -61 | 7 | 1 |
| 2005 | 9 | 12 | -7 | 24 | 8 | -24 | 7 | 25 | -22 | 19 | -6 | -29 |
| 2006 | 2 | 4 | 28 | 20 | 39 | -23 | -32 | -2 | -7 | 3 | 7 | -45 |
| 2007 | 0 | 22 | 7 | 26 | 22 | -1 | 2 | -11 | 18 | 18 | -44 | -42 |
| 2008 | 2 | 3 | 23 | 14 | 12 | -2 | -5 | 20 | 6 | -30 | -34 | -1 |
| 2009 | 8 | 23 | -19 | -7 | 2 | -8 | -2 | 4 | -7 | 17 | -16 | 0 |
| 2010 | 3 | 10 | -9 | -5 | 14 | 9 | 7 | -1 | 28 | 16 | -38 | -27 |
| 2011 | -9 | -3 | 15 | 10 | 15 | -9 | -20 | -22 | -6 | 1 | 15 | 16 |
| 2012 | 26 | -1 | 13 | 14 | -7 | -18 | 9 | -11 | 13 | 15 | 11 | -12 |
| 2013 | -7 | 10 | 4 | |||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 5/30/2013 |
| Next Release Date: Last Week of June 2013 |
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