2000 |
83%
|
2000 |
72%
|
2017 |
67%
|
2016 |
67%
|
2018 |
67%
|
2015 |
67%
|
2014 |
67%
|
2008 |
40%
|
2012 |
36%
|
2013 |
35%
|
2013 |
36%
|