| 1971 |
63%
|
| 1978 |
62%
|
| 1980 |
66%
|
| 1957 |
85%
|
| 1958 |
85%
|
| 1977 |
59%
|
| 1965 |
81%
|
| 1971 |
79%
|
| 1969 |
79%
|
| 1967 |
70%
|
