2002 |
89%
|
2008 |
84%
|
1993 |
76%
|
2006 |
73%
|
2005 |
73%
|
1986 |
59%
|
1989 |
51%
|
2007 |
15%
|
1987 |
43%
|
2008 |
28%
|