| 1992 |
60%
|
| 1985 |
58%
|
| 1982 |
61%
|
| 1983 |
63%
|
| 1983 |
75%
|
| 1996 |
67%
|
| 1980 |
70%
|
| 1983 |
71%
|
| 1978 |
65%
|
| 1977 |
65%
|
| 1981 |
71%
|
| 1985 |
74%
|
| 1971 |
79%
|
| 1984 |
66%
|
| 1973 |
53%
|
| 1991 |
34%
|
