| 1999 |
44%
|
| 1980 |
71%
|
| 1979 |
59%
|
| 1960 |
71%
|
| 1963 |
70%
|
| 1973 |
68%
|
| 1968 |
67%
|
| 1976 |
60%
|
| 1982 |
55%
|
| 1962 |
68%
|
| 1972 |
57%
|
| 1959 |
67%
|
| 1977 |
59%
|
| 1964 |
64%
|
| 1971 |
61%
|
| 1976 |
48%
|
| 1962 |
65%
|
| 1977 |
59%
|
| 1965 |
56%
|
| 1977 |
43%
|
| 1973 |
56%
|
| 1956 |
49%
|
| 1974 |
58%
|
| 1955 |
36%
|
| 1973 |
59%
|
| 1971 |
52%
|
| 1976 |
60%
|
| 1974 |
55%
|
| 1985 |
50%
|
| 1977 |
50%
|
| 2001 |
71%
|
| 1968 |
54%
|
| 1998 |
54%
|
