1995 |
84%
|
1997 |
84%
|
1984 |
63%
|
1988 |
77%
|
1964 |
82%
|
1981 |
71%
|
1975 |
51%
|
1997 |
69%
|
1973 |
69%
|
1951 |
63%
|