| 2007 |
61%
|
| 2005 |
44%
|
| 2008 |
69%
|
| 2011 |
75%
|
| 2007 |
58%
|
| 2002 |
59%
|
| 1987 |
76%
|
| 1988 |
76%
|
| 1992 |
76%
|
| 1990 |
48%
|
