1998 |
72%
|
2011 |
79%
|
2012 |
79%
|
2005 |
79%
|
2006 |
79%
|
2007 |
79%
|
2010 |
79%
|
2008 |
79%
|
2009 |
79%
|
2000 |
53%
|
2006 |
63%
|
2003 |
56%
|
1993 |
54%
|
1999 |
64%
|
1998 |
64%
|
2005 |
63%
|
2000 |
62%
|
1999 |
77%
|
2000 |
77%
|