2014 |
79%
|
2012 |
70%
|
2008 |
61%
|
2004 |
69%
|
1993 |
82%
|
1990 |
82%
|
2007 |
73%
|
2020 |
62%
|
2011 |
40%
|
1991 |
53%
|
2006 |
44%
|
2007 |
68%
|
2004 |
68%
|
1990 |
30%
|
2008 |
54%
|