| 2009 |
73%
|
| 2005 |
72%
|
| 2006 |
69%
|
| 2004 |
72%
|
| 2008 |
76%
|
| 2010 |
73%
|
| 2007 |
75%
|
| 2007 |
78%
|
| 2007 |
67%
|
| 2002 |
31%
|
| 1992 |
50%
|
