2013 |
74%
|
2009 |
86%
|
2010 |
86%
|
2011 |
86%
|
2008 |
86%
|
1989 |
76%
|
2015 |
66%
|
1994 |
90%
|
2006 |
56%
|
2000 |
81%
|
2017 |
82%
|
2017 |
82%
|
1988 |
61%
|
1991 |
52%
|
2001 |
74%
|
1994 |
47%
|
2018 |
65%
|
1999 |
68%
|
1998 |
68%
|
1980 |
66%
|
2001 |
62%
|
2003 |
62%
|