| 1960 |
79%
|
| 1959 |
91%
|
| 1961 |
91%
|
| 1985 |
58%
|
| 1986 |
54%
|
| 1987 |
50%
|
| 1989 |
44%
|
| 1958 |
85%
|
| 1968 |
79%
|
| 1971 |
79%
|
| 1969 |
79%
|
| 1970 |
79%
|
| 1966 |
79%
|
| 1977 |
70%
|
| 1978 |
70%
|
| 1963 |
82%
|
| 1966 |
81%
|
| 1968 |
81%
|
| 1965 |
81%
|
| 1967 |
81%
|
| 1959 |
78%
|
