| 1991 |
85%
|
| 1990 |
74%
|
| 2004 |
56%
|
| 2006 |
73%
|
| 1986 |
81%
|
| 1990 |
81%
|
| 1989 |
81%
|
| 1988 |
81%
|
| 1987 |
81%
|
| 1988 |
78%
|
