| 1976 |
79%
|
| 2006 |
66%
|
| 1979 |
70%
|
| 1985 |
67%
|
| 1982 |
67%
|
| 1990 |
59%
|
| 1963 |
91%
|
| 1959 |
91%
|
| 1960 |
91%
|
| 1981 |
69%
|
| 1983 |
63%
|
| 1966 |
65%
|
| 1966 |
75%
|
| 1967 |
75%
|
| 1966 |
75%
|
| 1985 |
62%
|
| 1977 |
63%
|
| 1981 |
63%
|
| 1965 |
81%
|
| 1972 |
79%
|
| 1969 |
79%
|
| 1987 |
70%
|
| 1988 |
44%
|
| 1972 |
41%
|
| 1991 |
39%
|
