1979 |
71%
|
1982 |
71%
|
1984 |
71%
|
1980 |
71%
|
1981 |
71%
|
1990 |
76%
|
1987 |
76%
|
1991 |
76%
|
1997 |
69%
|
2004 |
47%
|
1991 |
84%
|