| 1994 |
85%
|
| 1988 |
83%
|
| 1983 |
82%
|
| 1980 |
81%
|
| 1984 |
77%
|
| 1974 |
80%
|
| 1987 |
65%
|
| 1971 |
65%
|
| 1982 |
69%
|
| 1968 |
74%
|
| 1972 |
85%
|
| 1983 |
62%
|
| 1971 |
63%
|
| 1972 |
61%
|
| 1973 |
54%
|
| 1976 |
67%
|
| 1980 |
70%
|
| 1977 |
70%
|
| 1978 |
70%
|
| 1979 |
70%
|
| 1981 |
70%
|
| 1976 |
65%
|
| 1975 |
64%
|
| 1971 |
79%
|
| 1972 |
79%
|
| 1977 |
70%
|
| 1975 |
70%
|
| 1981 |
71%
|
| 1978 |
45%
|
| 1990 |
71%
|
| 1971 |
79%
|
| 1974 |
84%
|
| 1977 |
64%
|
| 1973 |
73%
|
| 1988 |
44%
|
| 1973 |
59%
|
| 1977 |
62%
|
| 1983 |
66%
|
| 1982 |
66%
|
| 1981 |
66%
|
| 1975 |
74%
|
| 1973 |
69%
|
| 1972 |
69%
|
| 1971 |
69%
|
| 1974 |
64%
|
| 1975 |
66%
|
| 1977 |
60%
|
| 1983 |
56%
|
| 1973 |
65%
|
| 1975 |
58%
|
