| 1990 |
76%
|
| 1983 |
73%
|
| 1993 |
64%
|
| 1989 |
71%
|
| 1986 |
68%
|
| 1988 |
63%
|
| 1981 |
69%
|
| 1988 |
44%
|
| 2015 |
72%
|
| 1976 |
37%
|
