| 2005 |
47%
|
| 1979 |
71%
|
| 1983 |
71%
|
| 1982 |
71%
|
| 1979 |
71%
|
| 1984 |
71%
|
| 1980 |
71%
|
| 1981 |
71%
|
| 1997 |
61%
|
| 2000 |
55%
|
| 1975 |
60%
|
| 1980 |
53%
|
