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| East Coast (PADD 1) Normal Butane-Butylene Stock Change (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 4 | -3 | 1 | 5 | -2 | 3 | -1 | 0 | 3 | 1 | -4 | 7 |
| 1982 | -4 | -8 | -5 | 3 | 2 | 8 | 2 | 2 | -1 | -2 | -5 | 0 |
| 1983 | -5 | -1 | -4 | 1 | 2 | 0 | 1 | 4 | 0 | 2 | 0 | -7 |
| 1984 | -1 | -3 | 0 | 1 | 2 | 2 | 4 | -4 | 1 | -3 | 7 | -7 |
| 1985 | 6 | -1 | -6 | 6 | 7 | 3 | -5 | 0 | 1 | 2 | -1 | 1 |
| 1986 | -3 | -2 | -3 | 0 | 0 | 5 | 1 | -4 | -9 | 5 | -3 | 4 |
| 1987 | 1 | 3 | 0 | 6 | 8 | -12 | 5 | 8 | -1 | -6 | -8 | 6 |
| 1988 | 2 | -2 | -2 | -3 | 2 | 7 | 3 | -3 | -1 | -7 | -3 | 9 |
| 1989 | -3 | 0 | -8 | -2 | 0 | 9 | 11 | 8 | -9 | -6 | -3 | 1 |
| 1990 | 10 | -19 | 14 | 2 | 9 | 16 | 12 | -3 | -8 | 2 | -5 | -20 |
| 1991 | -17 | -4 | 5 | 11 | 5 | 11 | 14 | 18 | -11 | 4 | -23 | -13 |
| 1992 | -15 | -9 | 9 | 11 | 8 | 16 | 17 | 15 | -13 | -12 | -21 | -11 |
| 1993 | -6 | -4 | 4 | 14 | 10 | 11 | 9 | 16 | -2 | -7 | -21 | -14 |
| 1994 | -18 | -7 | 5 | 16 | 12 | 6 | 7 | 17 | -3 | -3 | -18 | -16 |
| 1995 | -18 | -8 | 0 | 19 | 18 | 18 | 13 | 14 | -9 | -19 | -13 | -11 |
| 1996 | -12 | -15 | -2 | 14 | 13 | 11 | 13 | 15 | -8 | -8 | -20 | -20 |
| 1997 | -3 | -8 | 2 | 13 | 9 | 12 | 12 | 16 | -12 | 0 | -16 | -13 |
| 1998 | -18 | -4 | -6 | 17 | 13 | 9 | 17 | 18 | -8 | -3 | -13 | -6 |
| 1999 | -17 | -24 | -3 | 20 | 12 | 5 | 11 | 14 | -16 | -13 | 5 | -8 |
| 2000 | -23 | 7 | -15 | 16 | 7 | 3 | 23 | 16 | -13 | -8 | -19 | -13 |
| 2001 | -6 | 0 | -5 | 7 | 17 | 15 | 8 | 17 | -9 | -15 | -11 | -2 |
| 2002 | -11 | -12 | -10 | 17 | 14 | 14 | 6 | 18 | -12 | -11 | -20 | -5 |
| 2003 | -13 | -8 | -7 | 14 | 13 | 6 | 22 | 18 | -4 | -16 | -23 | -4 |
| 2004 | -1 | -17 | -5 | 13 | 13 | 14 | 13 | 14 | -8 | -6 | -20 | -18 |
| 2005 | -4 | -5 | 2 | 19 | 9 | 16 | 12 | 6 | -7 | -21 | -22 | -8 |
| 2006 | -1 | -9 | 3 | 13 | 16 | -1 | 5 | 37 | -3 | -14 | -17 | -3 |
| 2007 | -19 | -11 | -7 | 12 | 18 | 22 | 20 | 20 | -15 | -32 | -15 | 5 |
| 2008 | -2 | -18 | -9 | 9 | 17 | 20 | 22 | 22 | -11 | -30 | -22 | 2 |
| 2009 | -10 | -14 | -10 | 16 | 16 | 31 | 15 | 9 | 1 | -15 | -34 | -25 |
| 2010 | 3 | -9 | 1 | 5 | 13 | 17 | 15 | 16 | -17 | -15 | -2 | -19 |
| 2011 | -12 | -11 | 1 | 15 | 21 | 26 | 7 | 12 | 0 | -6 | -28 | -20 |
| 2012 | -8 | -19 | -11 | 3 | 15 | 12 | 18 | 12 | -17 | -18 | -2 | -14 |
| 2013 | -2 | -9 | ||||||||||
| - = 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 |