1961 |
91%
|
1960 |
85%
|
1947 |
65%
|
1966 |
81%
|
1968 |
81%
|
1965 |
81%
|
1967 |
81%
|
1955 |
69%
|
1968 |
69%
|
1959 |
83%
|