| 2008 |
68%
|
| 1992 |
65%
|
| 1989 |
76%
|
| 1993 |
76%
|
| 1996 |
61%
|
| 1997 |
56%
|
| 2005 |
66%
|
| 1998 |
45%
|
| 1990 |
66%
|
| 2009 |
43%
|
| 2007 |
61%
|
| 2013 |
44%
|
