1981 |
65%
|
1979 |
62%
|
1982 |
65%
|
1988 |
77%
|
1991 |
73%
|
1990 |
73%
|
1991 |
73%
|
1994 |
55%
|
1994 |
75%
|
1993 |
75%
|