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Download Data (XLS File) |
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| Midwest (PADD 2) Isobutane-Isobutylene Stock Change (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 7 | -3 | -7 | 4 | -6 | 1 | 0 | -9 | 5 | -14 | -3 | 2 |
| 1982 | 11 | 4 | 4 | -4 | -13 | -6 | -3 | 7 | -2 | 16 | 5 | -3 |
| 1983 | 5 | -13 | -1 | 8 | 3 | 4 | 14 | -10 | 7 | -10 | -8 | -10 |
| 1984 | -2 | 6 | 0 | -1 | -2 | -2 | -7 | -2 | 5 | -1 | -1 | 1 |
| 1985 | 2 | -4 | -16 | 2 | 2 | -4 | -4 | -1 | -3 | 4 | 12 | 3 |
| 1986 | -1 | -4 | -6 | 12 | -4 | 3 | -3 | -3 | 7 | 1 | 10 | -9 |
| 1987 | -6 | -6 | -1 | -9 | 5 | 5 | 7 | 0 | 6 | 6 | 6 | 5 |
| 1988 | -8 | -9 | -2 | 13 | -9 | -3 | 13 | -2 | 3 | -1 | 2 | -8 |
| 1989 | -4 | -10 | 2 | -2 | 9 | 5 | 3 | 7 | 1 | -1 | 7 | -14 |
| 1990 | -1 | -11 | 0 | 4 | 15 | 5 | 4 | -5 | 12 | -17 | 5 | -9 |
| 1991 | -4 | -3 | 12 | -13 | -5 | 5 | 4 | -1 | 10 | 2 | -3 | -2 |
| 1992 | -1 | 5 | 2 | 4 | -4 | -1 | -4 | -6 | 14 | 6 | 0 | -4 |
| 1993 | -10 | 2 | 10 | 12 | -5 | -1 | 6 | 4 | 7 | -12 | -17 | -6 |
| 1994 | 3 | 8 | 10 | -11 | -12 | -5 | 15 | 22 | -1 | -22 | -26 | 0 |
| 1995 | -5 | 1 | 9 | 3 | 3 | 8 | -3 | 18 | 8 | -4 | -28 | -1 |
| 1996 | -13 | -5 | 2 | 4 | 9 | -1 | 10 | 6 | -5 | -7 | -1 | -5 |
| 1997 | -7 | -10 | -3 | 13 | 13 | 7 | -2 | -1 | 3 | -11 | -2 | -1 |
| 1998 | -10 | 17 | -1 | 3 | -5 | 6 | -1 | 16 | 5 | -26 | -8 | -3 |
| 1999 | -2 | -5 | -5 | 2 | 8 | 2 | 6 | 0 | -4 | -3 | 3 | -7 |
| 2000 | -1 | -5 | 5 | 2 | -2 | 2 | 6 | 8 | -2 | -4 | -5 | 0 |
| 2001 | -8 | -7 | 2 | 5 | 2 | 3 | 7 | 1 | 0 | -9 | -8 | -1 |
| 2002 | 3 | 2 | -4 | 4 | 9 | 0 | 0 | 8 | 0 | -6 | -7 | -3 |
| 2003 | 8 | -4 | 1 | -8 | -4 | 13 | 4 | 1 | 4 | -1 | 0 | -13 |
| 2004 | -3 | -3 | 16 | 0 | -1 | 2 | 3 | 5 | 14 | -31 | 2 | 0 |
| 2005 | -4 | 2 | 5 | -4 | 3 | 2 | 5 | 3 | -7 | -2 | -6 | 5 |
| 2006 | -3 | -1 | 4 | 7 | 0 | 5 | 3 | 4 | 1 | 1 | -1 | -6 |
| 2007 | -9 | 5 | 5 | 2 | 7 | 8 | 9 | -2 | 5 | -3 | -13 | -12 |
| 2008 | -5 | -9 | 6 | 0 | -1 | 5 | 9 | 3 | -5 | -3 | 3 | -7 |
| 2009 | 1 | -6 | -7 | 2 | -1 | -2 | 4 | 0 | 4 | -3 | 4 | -8 |
| 2010 | 3 | 11 | 4 | -6 | 4 | -7 | -4 | -4 | -1 | 15 | 6 | -13 |
| 2011 | -10 | 1 | 7 | 0 | 3 | -3 | -11 | -3 | 4 | 6 | 0 | 7 |
| 2012 | 1 | 12 | 2 | -5 | 6 | -10 | -12 | -1 | -2 | 16 | 3 | 0 |
| 2013 | -2 | -2 | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 4/29/2013 |
| Next Release Date: Last Week of May 2013 |