| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 1 |
7.1%
|
|
| 2006 | 1 |
7.1%
|
|
| 2008 | 2 |
14.3%
|
|
| 2009 | 1 |
7.1%
|
|
| 2011 | 3 |
21.4%
|
|
| 2012 | 2 |
14.3%
|
|
| 2013 | 1 |
7.1%
|
|
| 2015 | 3 |
21.4%
|
|
| Sysmiss | 12393 |