1992 |
74%
|
1922 |
79%
|
1931 |
74%
|
2020 |
68%
|
1979 |
74%
|
2023 |
61%
|
1958 |
72%
|
1948 |
73%
|
1966 |
66%
|
1960 |
66%
|
1968 |
65%
|
1972 |
59%
|
1970 |
63%
|
1974 |
61%
|
1970 |
61%
|
2012 |
36%
|
1971 |
54%
|
1974 |
58%
|
1971 |
56%
|
1980 |
48%
|
1998 |
48%
|
1998 |
30%
|
1978 |
49%
|
2011 |
60%
|