1997 |
79%
|
2013 |
55%
|
2012 |
83%
|
2010 |
83%
|
1994 |
73%
|
2004 |
78%
|
2003 |
78%
|
2006 |
78%
|
2008 |
78%
|
1999 |
70%
|
2014 |
70%
|
2011 |
80%
|
2013 |
73%
|
2000 |
67%
|
2014 |
62%
|
2008 |
67%
|
2009 |
67%
|
2007 |
67%
|
2021 |
63%
|
2018 |
73%
|
2015 |
59%
|
2012 |
63%
|
1995 |
55%
|
2001 |
54%
|