| 1997 |
87%
|
| 2003 |
87%
|
| 2006 |
87%
|
| 2001 |
87%
|
| 1999 |
87%
|
| 2004 |
87%
|
| 2005 |
87%
|
| 1998 |
87%
|
| 2002 |
87%
|
| 2000 |
87%
|
| 1999 |
73%
|
| 1981 |
72%
|
| 1994 |
79%
|
| 2000 |
60%
|
| 1996 |
54%
|
| 2001 |
47%
|
| 1985 |
75%
|
| 1994 |
80%
|
| 1988 |
66%
|
| 2008 |
64%
|
| 1993 |
55%
|
| 2008 |
50%
|
| 1996 |
46%
|
| 1999 |
70%
|
| 2002 |
69%
|
| 1990 |
63%
|
