1991 |
79%
|
1991 |
71%
|
1987 |
65%
|
1967 |
75%
|
1965 |
74%
|
1971 |
79%
|
2010 |
86%
|
1988 |
78%
|
1989 |
51%
|
1985 |
56%
|