1997 |
77%
|
2006 |
77%
|
1997 |
69%
|
2024 |
86%
|
2013 |
75%
|
2006 |
76%
|
2009 |
72%
|
1973 |
62%
|
1985 |
48%
|
1987 |
--
|
1987 |
--
|