1967 |
74%
|
1966 |
74%
|
1977 |
70%
|
1978 |
70%
|
1984 |
67%
|
1968 |
79%
|
1971 |
79%
|
1972 |
79%
|
1966 |
81%
|
1968 |
81%
|
1974 |
84%
|
1977 |
62%
|
1982 |
66%
|
1984 |
66%
|
1968 |
69%
|
1971 |
69%
|
1977 |
57%
|