1990 |
64%
|
1976 |
59%
|
1979 |
70%
|
1976 |
79%
|
1984 |
75%
|
1972 |
64%
|
1976 |
74%
|
1985 |
74%
|
1992 |
50%
|
1988 |
76%
|
1973 |
64%
|
1972 |
60%
|
1990 |
55%
|
1975 |
60%
|
1973 |
59%
|
1992 |
55%
|