1979 |
74%
|
1981 |
69%
|
1981 |
58%
|
1984 |
55%
|
1990 |
46%
|
1988 |
51%
|
1980 |
35%
|
1983 |
52%
|
2010 |
77%
|
1989 |
57%
|
1980 |
34%
|
1975 |
56%
|
1976 |
42%
|
2019 |
67%
|