1985 |
62%
|
1991 |
74%
|
1993 |
74%
|
1992 |
74%
|
1992 |
79%
|
1992 |
54%
|
1995 |
70%
|
1981 |
71%
|
1982 |
71%
|
1985 |
71%
|
1993 |
68%
|
1996 |
58%
|
1989 |
48%
|
1994 |
39%
|
1993 |
39%
|
1994 |
52%
|