| 1980 |
65%
|
| 1982 |
63%
|
| 1972 |
70%
|
| 1980 |
61%
|
| 1977 |
59%
|
| 1984 |
27%
|
| 1984 |
55%
|
| 1989 |
57%
|
| 1977 |
48%
|
| 1987 |
55%
|
| 1989 |
49%
|
