2003 |
90%
|
1960 |
79%
|
1999 |
74%
|
1951 |
85%
|
1985 |
80%
|
1987 |
80%
|
1986 |
80%
|
1984 |
80%
|
1977 |
67%
|
1995 |
72%
|
1972 |
79%
|
1990 |
76%
|
1985 |
77%
|
1986 |
77%
|
1980 |
57%
|
1983 |
72%
|
1982 |
72%
|
1981 |
72%
|
1987 |
74%
|
1954 |
77%
|
1983 |
80%
|
1968 |
72%
|
1981 |
69%
|
1982 |
67%
|
1994 |
68%
|
1989 |
66%
|
1973 |
66%
|
1977 |
68%
|
1979 |
66%
|
1993 |
64%
|
1989 |
48%
|
1979 |
67%
|
1980 |
63%
|
1996 |
70%
|
1973 |
59%
|
1983 |
54%
|
1983 |
54%
|
1979 |
56%
|
1979 |
59%
|