1983 |
75%
|
1984 |
75%
|
1979 |
75%
|
1981 |
71%
|
1977 |
65%
|
1976 |
65%
|
1983 |
65%
|
1981 |
71%
|
1980 |
68%
|
1983 |
71%
|
1984 |
71%
|
1972 |
62%
|
1977 |
72%
|
1975 |
58%
|