| 1999 |
79%
|
| 2000 |
69%
|
| 2002 |
61%
|
| 2004 |
52%
|
| 2004 |
58%
|
| 2008 |
48%
|
| 2005 |
68%
|
| 2010 |
40%
|
| 2010 |
63%
|
| 2006 |
44%
|
| 1995 |
48%
|
| 1997 |
53%
|
