| 1981 |
84%
|
| 1989 |
82%
|
| 2014 |
77%
|
| 2016 |
72%
|
| 2017 |
65%
|
| 2012 |
87%
|
| 2018 |
66%
|
| 2017 |
52%
|
| 2018 |
72%
|
| 1990 |
68%
|
| 1968 |
69%
|
| 2019 |
66%
|
| 1967 |
68%
|
