| 1980 |
87%
|
| 1987 |
81%
|
| 1978 |
67%
|
| 1976 |
74%
|
| 1985 |
67%
|
| 1995 |
63%
|
| 1980 |
68%
|
| 1992 |
72%
|
| 1989 |
47%
|
| 1979 |
57%
|
