1986 |
69%
|
2009 |
75%
|
2007 |
75%
|
2008 |
75%
|
2006 |
75%
|
2014 |
75%
|
2013 |
75%
|
2015 |
75%
|
2016 |
75%
|
2017 |
75%
|
2017 |
62%
|
1987 |
67%
|
2014 |
72%
|
2016 |
72%
|
2013 |
72%
|
2012 |
72%
|
1998 |
77%
|
2014 |
70%
|
2013 |
70%
|
2016 |
70%
|
2002 |
72%
|
2014 |
60%
|
2013 |
60%
|
2010 |
72%
|
2015 |
59%
|
2016 |
59%
|
2021 |
44%
|
2005 |
44%
|