| 1975 |
72%
|
| 1971 |
67%
|
| 1971 |
65%
|
| 1980 |
56%
|
| 1976 |
54%
|
| 1978 |
52%
|
| 1983 |
47%
|
| 1974 |
72%
|
| 1972 |
63%
|
| 1974 |
52%
|
| 1974 |
61%
|
| 1975 |
59%
|
| 1976 |
65%
|
| 1981 |
47%
|
| 1978 |
44%
|
| 1973 |
60%
|
| 1989 |
49%
|
| 1973 |
64%
|
| 1975 |
61%
|
| 1974 |
49%
|
| 1977 |
41%
|
