2013 |
33%
|
1999 |
81%
|
2019 |
74%
|
2014 |
40%
|
2015 |
40%
|
1994 |
72%
|
1981 |
49%
|
2016 |
39%
|
2017 |
39%
|
2003 |
69%
|
2018 |
35%
|
1993 |
70%
|
1995 |
70%
|
1994 |
70%
|
2015 |
46%
|
2011 |
41%
|
1999 |
68%
|
1998 |
68%
|
2006 |
63%
|
2015 |
41%
|