2011 |
77%
|
2010 |
76%
|
1997 |
75%
|
2016 |
68%
|
1992 |
57%
|
1995 |
65%
|
1998 |
58%
|
2017 |
46%
|
1985 |
58%
|
1987 |
51%
|
2023 |
25%
|