1961 |
91%
|
1985 |
77%
|
1968 |
79%
|
1967 |
79%
|
1971 |
79%
|
1970 |
79%
|
1966 |
81%
|
1965 |
81%
|
1962 |
85%
|
1973 |
63%
|