1983 |
75%
|
1983 |
75%
|
1986 |
74%
|
1982 |
65%
|
1979 |
65%
|
1977 |
65%
|
1978 |
70%
|
1985 |
71%
|
1980 |
68%
|
1982 |
71%
|
1984 |
71%
|
1981 |
61%
|
1983 |
66%
|
1982 |
38%
|
1991 |
56%
|
1991 |
56%
|
1982 |
47%
|