| 1980 |
85%
|
| 1981 |
66%
|
| 1986 |
74%
|
| 1978 |
62%
|
| 1979 |
70%
|
| 1995 |
72%
|
| 1992 |
61%
|
| 1982 |
56%
|
| 1987 |
43%
|
| 2012 |
71%
|
| 1990 |
19%
|
