1952 |
85%
|
1979 |
71%
|
1983 |
71%
|
1982 |
71%
|
1979 |
71%
|
1984 |
71%
|
1980 |
71%
|
1981 |
71%
|
1978 |
65%
|
1967 |
79%
|
1972 |
74%
|
1966 |
81%
|
1993 |
64%
|
1997 |
64%
|
1995 |
64%
|
1996 |
64%
|
1994 |
64%
|
1968 |
69%
|
1965 |
72%
|
1980 |
67%
|