1998 |
83%
|
2013 |
82%
|
1999 |
74%
|
1997 |
76%
|
2000 |
76%
|
1999 |
76%
|
1998 |
76%
|
1996 |
76%
|
2006 |
56%
|
1994 |
67%
|
1993 |
79%
|
2005 |
63%
|
2002 |
59%
|
1994 |
46%
|
2009 |
57%
|
2007 |
57%
|
2017 |
74%
|
2016 |
47%
|
1987 |
41%
|