| 1976 |
85%
|
| 2005 |
60%
|
| 1998 |
77%
|
| 1975 |
70%
|
| 1975 |
59%
|
| 1984 |
60%
|
| 1985 |
66%
|
| 1983 |
66%
|
| 1982 |
66%
|
| 1981 |
66%
|
| 1984 |
66%
|
| 1980 |
66%
|
| 1979 |
66%
|
| 2010 |
79%
|
