| 1972 |
89%
|
| 2006 |
53%
|
| 1978 |
67%
|
| 1996 |
45%
|
| 2016 |
79%
|
| 2006 |
76%
|
| 1979 |
78%
|
| 1964 |
67%
|
| 2020 |
67%
|
