2003 |
69%
|
1997 |
69%
|
1999 |
68%
|
1998 |
68%
|
2013 |
69%
|
2015 |
67%
|
2012 |
60%
|
2012 |
69%
|
2014 |
66%
|
2015 |
63%
|
2014 |
67%
|
2012 |
68%
|
2011 |
76%
|
2013 |
68%
|
2012 |
67%
|
2010 |
68%
|
2016 |
60%
|
2011 |
69%
|