| 2011 |
81%
|
| 2001 |
76%
|
| 2002 |
74%
|
| 2004 |
79%
|
| 2005 |
71%
|
| 2007 |
73%
|
| 2010 |
77%
|
| 2009 |
76%
|
| 2004 |
65%
|
| 2004 |
52%
|
| 2001 |
67%
|
| 1985 |
62%
|
| 1980 |
65%
|
| 1983 |
61%
|
| 1988 |
79%
|
| 1999 |
63%
|
| 1980 |
66%
|
| 2004 |
60%
|
| 1989 |
47%
|
