| 1961 |
91%
|
| 1978 |
85%
|
| 1974 |
85%
|
| 1981 |
85%
|
| 1973 |
85%
|
| 1979 |
85%
|
| 1976 |
67%
|
| 1981 |
71%
|
| 1967 |
81%
|
| 1981 |
55%
|
| 2010 |
77%
|
