| 2009 |
73%
|
| 2005 |
72%
|
| 2008 |
76%
|
| 1986 |
71%
|
| 2006 |
44%
|
| 1993 |
75%
|
| 1975 |
85%
|
| 1976 |
85%
|
| 1982 |
85%
|
| 2000 |
66%
|
