1978 |
85%
|
1974 |
85%
|
1975 |
85%
|
1973 |
85%
|
1976 |
85%
|
1983 |
75%
|
1984 |
75%
|
1977 |
65%
|
1983 |
50%
|
1995 |
72%
|
1997 |
72%
|
1996 |
72%
|
1996 |
68%
|
1981 |
66%
|
1979 |
66%
|
1984 |
56%
|
1991 |
39%
|