2015 |
81%
|
2004 |
67%
|
2007 |
52%
|
2013 |
63%
|
2007 |
57%
|
1999 |
57%
|
2015 |
60%
|
2006 |
62%
|
2004 |
46%
|
2008 |
63%
|
2015 |
55%
|
2015 |
74%
|
2004 |
60%
|
2012 |
64%
|