| 1999 |
70%
|
| 2001 |
64%
|
| 2012 |
67%
|
| 2003 |
63%
|
| 2009 |
60%
|
| 1983 |
73%
|
| 2005 |
50%
|
| 2006 |
51%
|
| 2007 |
53%
|
| 2009 |
47%
|
| 2003 |
34%
|
| 1981 |
69%
|
| 2009 |
67%
|
| 1998 |
57%
|
| 2006 |
63%
|
| 2002 |
56%
|
| 1990 |
69%
|
| 1991 |
69%
|
| 1992 |
69%
|
