| 1987 |
78%
|
| 1996 |
86%
|
| 1979 |
85%
|
| 1988 |
66%
|
| 1977 |
84%
|
| 1997 |
56%
|
| 1980 |
70%
|
| 1978 |
70%
|
| 1977 |
65%
|
| 1973 |
68%
|
| 1985 |
77%
|
| 1996 |
30%
|
| 1987 |
38%
|
| 2001 |
39%
|
| 1975 |
70%
|
| 1992 |
52%
|
| 1975 |
58%
|
