1983 |
75%
|
1971 |
79%
|
1972 |
79%
|
1972 |
79%
|
1997 |
68%
|
1983 |
66%
|
1994 |
28%
|
1984 |
57%
|
1981 |
61%
|
1982 |
61%
|
1996 |
74%
|
1995 |
74%
|