2009 |
84%
|
2002 |
92%
|
1996 |
62%
|
2007 |
77%
|
2006 |
77%
|
2005 |
77%
|
2009 |
77%
|
2004 |
77%
|
2003 |
77%
|
2009 |
65%
|
1992 |
72%
|
1985 |
78%
|
2007 |
48%
|
1982 |
41%
|