1997 |
56%
|
2007 |
70%
|
2005 |
64%
|
2002 |
69%
|
2017 |
51%
|
2008 |
64%
|
1996 |
77%
|
1997 |
65%
|
2010 |
77%
|
2016 |
72%
|
2006 |
67%
|
2021 |
53%
|