1995 |
90%
|
1972 |
61%
|
1980 |
65%
|
1985 |
67%
|
1987 |
62%
|
1969 |
79%
|
1980 |
75%
|
1981 |
71%
|
1982 |
71%
|
1983 |
71%
|
1968 |
81%
|
1976 |
65%
|
1957 |
76%
|
1955 |
76%
|