1974 |
80%
|
1960 |
91%
|
1963 |
91%
|
1953 |
71%
|
1954 |
85%
|
1966 |
75%
|
1966 |
75%
|
1953 |
70%
|
1960 |
85%
|
1959 |
74%
|
1969 |
74%
|
1966 |
74%
|
1965 |
74%
|
1976 |
65%
|
1975 |
64%
|
1947 |
77%
|
1968 |
79%
|
1967 |
79%
|
1969 |
79%
|
1966 |
79%
|
1975 |
75%
|
1978 |
45%
|
1978 |
74%
|
1968 |
81%
|
1965 |
81%
|
1967 |
81%
|
1974 |
84%
|
1962 |
85%
|
1968 |
69%
|
1974 |
63%
|
1959 |
83%
|
1959 |
76%
|
1957 |
76%
|