| 2016 |
72%
|
| 2011 |
69%
|
| 2007 |
60%
|
| 2009 |
57%
|
| 2005 |
54%
|
| 2009 |
70%
|
| 1996 |
57%
|
| 2004 |
72%
|
| 2003 |
79%
|
| 1991 |
59%
|
