| 1979 |
85%
|
| 1983 |
62%
|
| 1988 |
58%
|
| 1984 |
67%
|
| 1987 |
62%
|
| 1985 |
77%
|
| 1974 |
79%
|
| 1980 |
75%
|
| 1985 |
74%
|
| 1967 |
81%
|
| 1972 |
52%
|
| 1985 |
66%
|
| 1979 |
66%
|
| 1968 |
69%
|
