1992 |
80%
|
1989 |
76%
|
1989 |
67%
|
1985 |
80%
|
1986 |
80%
|
1986 |
77%
|
1989 |
63%
|
1985 |
74%
|
1987 |
74%
|
1988 |
74%
|
1992 |
83%
|
1981 |
69%
|
1983 |
54%
|
1983 |
54%
|