1997 |
79%
|
1996 |
79%
|
1998 |
79%
|
2009 |
74%
|
1999 |
65%
|
1998 |
65%
|
1999 |
71%
|
2013 |
82%
|
2013 |
75%
|
2017 |
71%
|