| 1939 |
81%
|
| 1968 |
80%
|
| 1982 |
67%
|
| 1988 |
63%
|
| 1978 |
62%
|
| 1986 |
61%
|
| 1977 |
65%
|
| 1980 |
65%
|
| 1985 |
77%
|
| 1967 |
81%
|
| 1970 |
69%
|
| 1984 |
47%
|
| 2010 |
27%
|
