1994 |
89%
|
2009 |
79%
|
2003 |
80%
|
1992 |
83%
|
2004 |
77%
|
1997 |
74%
|
1996 |
74%
|
1995 |
67%
|
2006 |
74%
|
2018 |
60%
|
2004 |
59%
|
1999 |
41%
|
2011 |
87%
|
1999 |
48%
|
1989 |
61%
|
2017 |
66%
|