1968 |
80%
|
1992 |
90%
|
1993 |
90%
|
1959 |
91%
|
1985 |
70%
|
1987 |
69%
|
1970 |
60%
|
1971 |
63%
|
1972 |
61%
|
1973 |
54%
|
1966 |
75%
|
1982 |
70%
|
1997 |
84%
|
1998 |
84%
|
1996 |
80%
|
1995 |
80%
|
1988 |
59%
|
1982 |
65%
|
1972 |
79%
|
1977 |
70%
|
1978 |
70%
|
1978 |
28%
|
1969 |
79%
|
1989 |
45%
|
1974 |
70%
|
1963 |
85%
|
1964 |
85%
|
1980 |
57%
|
1985 |
72%
|
1991 |
83%
|
1998 |
68%
|
1979 |
66%
|
1967 |
56%
|