| 1975 |
72%
|
| 1979 |
53%
|
| 1979 |
74%
|
| 1980 |
65%
|
| 1987 |
50%
|
| 1972 |
74%
|
| 1983 |
55%
|
| 1980 |
65%
|
| 1974 |
52%
|
| 1984 |
48%
|
| 1983 |
46%
|
| 1983 |
46%
|
| 1982 |
46%
|
| 1980 |
47%
|
| 1982 |
38%
|
| 1982 |
34%
|
