| 2002 |
78%
|
| 2003 |
78%
|
| 2001 |
78%
|
| 2000 |
67%
|
| 2000 |
67%
|
| 1997 |
61%
|
| 1997 |
61%
|
| 1996 |
58%
|
| 1996 |
58%
|
| 1995 |
55%
|
| 1993 |
39%
|
