| 1959 |
91%
|
| 1961 |
91%
|
| 1974 |
85%
|
| 1970 |
60%
|
| 1957 |
85%
|
| 1956 |
85%
|
| 1971 |
79%
|
| 1976 |
79%
|
| 1965 |
81%
|
| 1971 |
79%
|
| 1974 |
84%
|
| 1963 |
85%
|
| 1966 |
59%
|
| 1966 |
58%
|
| 1967 |
53%
|
