2000 |
87%
|
2007 |
74%
|
2014 |
40%
|
1990 |
60%
|
2015 |
40%
|
1985 |
77%
|
1995 |
64%
|
2011 |
31%
|
1995 |
71%
|
2012 |
34%
|