2013 |
75%
|
2016 |
78%
|
2014 |
66%
|
2018 |
69%
|
2015 |
65%
|
2017 |
59%
|
2011 |
51%
|
2016 |
58%
|
2021 |
57%
|
2008 |
64%
|
2017 |
32%
|