| 1996 |
70%
|
| 2005 |
69%
|
| 1989 |
76%
|
| 1983 |
73%
|
| 2001 |
50%
|
| 1996 |
69%
|
| 1997 |
59%
|
| 2005 |
62%
|
| 1992 |
75%
|
| 2006 |
63%
|
| 1971 |
79%
|
| 2005 |
71%
|
| 2003 |
27%
|
| 2003 |
57%
|
| 1980 |
75%
|
| 2004 |
47%
|
