1994 |
90%
|
1975 |
69%
|
1998 |
57%
|
1978 |
75%
|
1980 |
75%
|
1979 |
75%
|
1977 |
75%
|
1975 |
75%
|
1983 |
75%
|
1984 |
75%
|
1976 |
75%
|
1982 |
75%
|
1981 |
75%
|
1975 |
75%
|