| 1963 |
91%
|
| 1970 |
74%
|
| 1986 |
67%
|
| 1992 |
75%
|
| 1963 |
82%
|
| 1964 |
85%
|
| 1993 |
44%
|
| 1986 |
34%
|
| 2011 |
71%
|
| 1995 |
68%
|
