2012
2013
2014
2015
2016
52
%
46
%
46
%
47
%
49
%
2012
2013
2014
2015
2016
50
%
39
%
45
%
42
%
45
%
75%
77%
75%
76%
81%
21
%
2013
23
%
2014
28
%
2015
26
%
2016
57%
2012
59%
2013
64%
2014
61%
2015
63%
2016
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
0
%
2013
2012
2014
2015
2016
2012
2013
2014
2015
2016
0
%
0
%
0
%
0
%
27%
22%
33%
32%
31%
2012
28%
2013
31%
2014
35%
2015
31%
2016
29%
2012
20%
2013
22%
2014
26%
2015
21%
2016
22%
2012
14%
2013
17%
2014
18%
2015
26%
2016
22%
76%
74%
70%
23%
21%
20%
14%
12%
10%
18%
13%
10%
17%
13%
12%
46%
35%
35%
32%
32%
19%
32%
23%
23%
22%
10%
16%
20%
14%
19%
8%
3%
2%
6%
3%
17%
14%
19%
24%
22%
2012
37%
2014
48%
2015
35%
2016
33%
2012
90%
2013
86%
2014
96%
2015
86%
2016
86%
2012
25%
2014
34%
2015
25%
2016
19%
2012
83%
2013
89%
2014
92%
2015
89%
2016
89%