| 2012 |
86%
|
| 2013 |
86%
|
| 2008 |
86%
|
| 2010 |
68%
|
| 2007 |
59%
|
| 1980 |
52%
|
| 2001 |
65%
|
| 2000 |
65%
|
| 2015 |
69%
|
| 1988 |
77%
|
| 2001 |
31%
|
