| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 1 |
14.3%
|
|
| 2009 | 1 |
14.3%
|
|
| 2010 | 2 |
28.6%
|
|
| 2012 | 2 |
28.6%
|
|
| 2013 | 1 |
14.3%
|
|
| Sysmiss | 893 |