1994 |
86%
|
1990 |
63%
|
1998 |
66%
|
2006 |
62%
|
1997 |
77%
|
2001 |
77%
|
2006 |
73%
|
2005 |
73%
|
1996 |
61%
|
2013 |
60%
|
1997 |
69%
|
1999 |
68%
|
1995 |
66%
|
2012 |
72%
|
2012 |
68%
|
2012 |
74%
|