| 1968 |
80%
|
| 1979 |
70%
|
| 1991 |
80%
|
| 2020 |
56%
|
| 1993 |
60%
|
| 1985 |
57%
|
| 1997 |
30%
|
| 1979 |
65%
|
| 1982 |
51%
|
| 1980 |
55%
|
| 1982 |
49%
|
| 1985 |
43%
|
