| 1990 |
73%
|
| 1983 |
73%
|
| 1981 |
85%
|
| 1983 |
75%
|
| 1984 |
75%
|
| 1986 |
74%
|
| 1979 |
70%
|
| 1978 |
70%
|
| 1981 |
70%
|
| 1979 |
71%
|
| 1979 |
65%
|
| 2006 |
49%
|
| 1998 |
33%
|
| 1983 |
56%
|
| 1995 |
74%
|
