2012 |
79%
|
2013 |
83%
|
1999 |
81%
|
2000 |
81%
|
1999 |
81%
|
1997 |
84%
|
1998 |
84%
|
2013 |
65%
|
2004 |
74%
|
2007 |
74%
|