| 1978 |
75%
|
| 1980 |
61%
|
| 1977 |
65%
|
| 1987 |
62%
|
| 1984 |
71%
|
| 1986 |
74%
|
| 1967 |
81%
|
| 1969 |
79%
|
| 1988 |
49%
|
| 1987 |
67%
|
