2011 |
25%
|
2012 |
46%
|
2014 |
41%
|
2010 |
42%
|
2011 |
36%
|
2013 |
43%
|
2011 |
45%
|
2012 |
40%
|
2011 |
38%
|
2012 |
44%
|
2010 |
62%
|
2012 |
55%
|
2014 |
51%
|