1953 |
71%
|
1966 |
75%
|
1967 |
75%
|
1966 |
75%
|
1968 |
79%
|
1967 |
79%
|
1969 |
79%
|
1966 |
79%
|
1963 |
67%
|
1966 |
81%
|
1968 |
81%
|
1965 |
81%
|
1967 |
81%
|
1964 |
67%
|
1960 |
76%
|
1959 |
76%
|
1958 |
76%
|
1957 |
76%
|
1955 |
76%
|
1969 |
61%
|