1970 |
74%
|
1972 |
61%
|
1966 |
75%
|
1967 |
74%
|
1973 |
68%
|
1967 |
79%
|
1969 |
79%
|
1966 |
79%
|
1965 |
81%
|
1971 |
69%
|
1970 |
69%
|
1969 |
69%
|
1959 |
76%
|