2003 |
60%
|
2006 |
56%
|
2009 |
57%
|
2007 |
57%
|
1999 |
66%
|
2000 |
67%
|
2002 |
66%
|
2001 |
66%
|
2002 |
65%
|
2002 |
66%
|