| 1988 |
77%
|
| 2009 |
68%
|
| 2005 |
67%
|
| 2005 |
63%
|
| 1982 |
73%
|
| 2008 |
56%
|
| 2006 |
72%
|
| 1993 |
41%
|
| 2005 |
23%
|
| 1997 |
36%
|
| 2006 |
65%
|
| 1990 |
67%
|
| 1995 |
71%
|
| 1996 |
80%
|
| 1989 |
72%
|
| 2007 |
58%
|
