| 1990 |
68%
|
| 1988 |
50%
|
| 1984 |
48%
|
| 1986 |
50%
|
| 1978 |
57%
|
| 1992 |
72%
|
| 1985 |
76%
|
| 1983 |
76%
|
| 1979 |
57%
|
| 1984 |
35%
|
