67%
0
10
30
20
40
50
60
80
70
2015
13
11
09
07
05
Approval, percent
67%
0
10
30
20
40
50
60
80
70
2015
14
13
12
11
10
09
08
07
06
2005
Approval, percent
67%
0
10
30
20
40
50
60
80
70
2015
14
13
12
11
10
09
08
07
06
2005
Approval, percent
67%
0
10
30
20
40
50
60
80
70
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
Approval, percent