| 1960 |
79%
|
| 1959 |
91%
|
| 1963 |
91%
|
| 1968 |
74%
|
| 1968 |
79%
|
| 1967 |
79%
|
| 1969 |
79%
|
| 1970 |
79%
|
| 1966 |
79%
|
| 1975 |
70%
|
| 1966 |
57%
|
| 1964 |
82%
|
| 1963 |
82%
|
| 1968 |
81%
|
| 1981 |
72%
|
| 1972 |
59%
|
| 1981 |
69%
|
| 1982 |
67%
|
| 1979 |
57%
|
