| 1977 |
84%
|
| 1966 |
74%
|
| 1965 |
74%
|
| 1967 |
79%
|
| 1970 |
79%
|
| 1973 |
79%
|
| 1972 |
79%
|
| 1978 |
75%
|
| 1975 |
75%
|
| 1976 |
74%
|
| 1966 |
81%
|
| 1974 |
84%
|
| 1985 |
77%
|
| 1978 |
62%
|
| 1974 |
63%
|
| 1989 |
61%
|
| 1980 |
67%
|
| 1989 |
48%
|
