2011 |
22%
|
2007 |
50%
|
2016 |
31%
|
2014 |
38%
|
2016 |
45%
|
2016 |
33%
|
2008 |
34%
|
2008 |
56%
|
2007 |
66%
|
2016 |
48%
|
2012 |
67%
|