2012 |
81%
|
2012 |
79%
|
2010 |
74%
|
2011 |
79%
|
2007 |
75%
|
1990 |
88%
|
1990 |
88%
|
2009 |
79%
|
1985 |
74%
|
1986 |
74%
|