1981 |
84%
|
1971 |
86%
|
1989 |
82%
|
1984 |
74%
|
1988 |
72%
|
1984 |
57%
|
1981 |
69%
|
1985 |
51%
|
1981 |
59%
|
2005 |
84%
|