1983 |
75%
|
1986 |
75%
|
1980 |
58%
|
1986 |
61%
|
1984 |
71%
|
1981 |
71%
|
1996 |
64%
|
1995 |
64%
|
1987 |
53%
|
1999 |
59%
|