| 1997 |
81%
|
| 2005 |
72%
|
| 2008 |
56%
|
| 2012 |
64%
|
| 2002 |
85%
|
| 1997 |
72%
|
| 2006 |
78%
|
| 2018 |
73%
|
| 2011 |
68%
|
| 2011 |
62%
|
| 2002 |
61%
|
| 2002 |
55%
|
| 2017 |
59%
|
