| 1974 |
80%
|
| 1992 |
90%
|
| 1970 |
74%
|
| 2000 |
67%
|
| 1980 |
65%
|
| 1972 |
41%
|
| 1981 |
66%
|
| 1980 |
66%
|
| 1994 |
79%
|
