| 1987 |
78%
|
| 1980 |
79%
|
| 2000 |
53%
|
| 1990 |
58%
|
| 1983 |
63%
|
| 1978 |
54%
|
| 1974 |
57%
|
| 2010 |
73%
|
| 2019 |
72%
|
