| 1960 |
65%
|
| 1958 |
85%
|
| 1976 |
65%
|
| 1968 |
79%
|
| 1966 |
79%
|
| 1969 |
79%
|
| 1956 |
77%
|
| 1980 |
66%
|
| 1960 |
76%
|
| 1975 |
58%
|
