| 2012 |
90%
|
| 2009 |
58%
|
| 1998 |
73%
|
| 2005 |
54%
|
| 1997 |
67%
|
| 1998 |
67%
|
| 1999 |
67%
|
| 2000 |
64%
|
| 1997 |
52%
|
| 1981 |
71%
|
| 1990 |
71%
|
| 1989 |
62%
|
