| 1996 |
84%
|
| 1995 |
84%
|
| 1992 |
84%
|
| 1994 |
84%
|
| 1991 |
73%
|
| 1989 |
73%
|
| 1990 |
73%
|
| 1991 |
73%
|
| 1994 |
75%
|
| 1993 |
75%
|
| 1999 |
53%
|
| 1988 |
60%
|
| 1991 |
41%
|
