| 1974 |
85%
|
| 1993 |
79%
|
| 1990 |
80%
|
| 1979 |
71%
|
| 1985 |
77%
|
| 1976 |
79%
|
| 1977 |
75%
|
| 1975 |
74%
|
| 1976 |
74%
|
| 1978 |
74%
|
| 1973 |
59%
|
| 1970 |
65%
|
| 1992 |
58%
|
| 1977 |
59%
|
| 1989 |
51%
|
| 1985 |
58%
|
| 1972 |
64%
|
| 1974 |
56%
|
| 1977 |
57%
|
