1963 |
91%
|
1970 |
79%
|
1972 |
79%
|
1968 |
81%
|
1965 |
81%
|
1967 |
81%
|
1962 |
85%
|
1952 |
77%
|
1954 |
77%
|
1956 |
77%
|
1956 |
65%
|
1959 |
76%
|
1956 |
76%
|
1974 |
55%
|