| 1973 |
67%
|
| 1969 |
65%
|
| 1974 |
66%
|
| 1974 |
64%
|
| 1973 |
64%
|
| 1969 |
60%
|
| 1974 |
66%
|
| 1975 |
63%
|
| 1980 |
59%
|
| 1986 |
48%
|
| 1972 |
64%
|
