1963 |
91%
|
1972 |
85%
|
1984 |
75%
|
1993 |
64%
|
1986 |
74%
|
1985 |
77%
|
1992 |
56%
|
1959 |
76%
|
1979 |
59%
|
1985 |
58%
|