| 1972 |
89%
|
| 1984 |
75%
|
| 1969 |
74%
|
| 1977 |
65%
|
| 1976 |
65%
|
| 1974 |
65%
|
| 1968 |
79%
|
| 1969 |
79%
|
| 1970 |
79%
|
| 1992 |
71%
|
| 1968 |
54%
|
