1994 |
89%
|
2012 |
85%
|
2009 |
79%
|
2003 |
80%
|
1992 |
83%
|
2019 |
76%
|
2004 |
77%
|
2015 |
78%
|
1997 |
74%
|
1996 |
74%
|
2007 |
70%
|
1994 |
74%
|
1993 |
79%
|
2007 |
78%
|
1995 |
67%
|
2015 |
68%
|
2014 |
68%
|
2016 |
68%
|
2011 |
88%
|
1987 |
56%
|