| 2011 |
81%
|
| 2002 |
74%
|
| 2005 |
71%
|
| 2007 |
73%
|
| 2010 |
77%
|
| 2009 |
76%
|
| 1992 |
78%
|
| 1994 |
55%
|
| 1988 |
64%
|
| 2020 |
68%
|
| 1990 |
64%
|
