| 1977 |
86%
|
| 1980 |
84%
|
| 1989 |
82%
|
| 1988 |
77%
|
| 1981 |
78%
|
| 1980 |
68%
|
| 1985 |
63%
|
| 1986 |
68%
|
| 1983 |
50%
|
| 1980 |
65%
|
| 1987 |
37%
|
| 1983 |
61%
|
| 1985 |
61%
|
| 1984 |
44%
|
| 1985 |
58%
|
| 1989 |
47%
|
| 1984 |
50%
|
