2010 |
77%
|
2003 |
75%
|
2006 |
75%
|
1994 |
75%
|
1984 |
64%
|
2001 |
84%
|
1995 |
73%
|
1994 |
67%
|
1993 |
67%
|
1990 |
67%
|
1991 |
67%
|
1992 |
67%
|
1995 |
67%
|
2006 |
70%
|
2005 |
55%
|
2004 |
55%
|
2005 |
55%
|
2003 |
55%
|
2007 |
55%
|
2011 |
65%
|
1989 |
48%
|