1983 |
83%
|
1980 |
84%
|
1981 |
84%
|
1989 |
82%
|
1984 |
74%
|
1989 |
74%
|
1981 |
69%
|
1985 |
61%
|
1981 |
55%
|
1981 |
59%
|