2006 |
67%
|
1989 |
57%
|
1996 |
70%
|
2000 |
67%
|
1998 |
60%
|
1989 |
48%
|
1990 |
62%
|
1988 |
54%
|
2017 |
54%
|
2003 |
32%
|
2004 |
39%
|
1994 |
84%
|
2003 |
39%
|
2012 |
25%
|
2008 |
78%
|
2013 |
71%
|