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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
Midwest (PADD 2) Normal Butane-Butylene Exports (Thousand Barrels per Day)
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1981
0
0
0
0
0
0
0
78
0
33
15
9
1982
19
9
16
15
0
36
0
15
27
27
0
7
1983
33
0
27
14
11
8
14
1
33
6
0
19
1984
0
3
5
3
3
3
3
4
0
2
3
5
1985
3
2
0
2
0
2
2
2
0
0
5
2
1986
0
5
4
3
3
0
3
3
3
0
5
2
1987
3
3
3
4
4
2
4
4
4
3
4
5
1988
5
4
5
4
4
4
4
5
4
3
6
4
1989
0
1
1
1
5
4
3
9
5
5
10
7
1990
4
4
3
2
5
4
6
8
5
3
5
4
1991
0
1
2
2
2
0
1
1
1
2
0
3
1992
2
1
1
2
2
1
2
2
1
1
1
1
1993
1
2
4
3
2
4
3
1
1
0
2
1
1994
2
2
2
1
4
2
2
3
1
1
1
2
1995
4
3
3
3
7
4
4
2
1
0
12
28
1996
4
12
2
8
6
4
10
1
12
5
0
2
1997
4
12
5
3
2
3
10
4
6
1
1
4
1998
6
11
2
6
3
7
9
2
8
0
13
0
1999
8
11
10
3
10
10
6
10
9
1
7
5
2000
2
7
11
6
6
16
11
12
10
3
9
7
2001
8
1
4
6
8
8
5
1
3
5
1
1
2002
5
2
1
1
10
1
1
7
7
2
5
1
2003
6
6
1
11
2
5
4
3
4
3
2
5
2004
5
1
1
3
6
7
7
7
5
2
3
26
2005
3
18
15
11
11
7
4
10
8
3
2
2
2006
8
7
7
6
5
5
4
7
3
3
1
4
2007
1
5
7
12
11
13
12
9
10
1
1
9
2008
7
9
9
12
Updated on 6/26/2008
Source: U.S. Energy Information Administration
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