| Value | Category | Cases | |
|---|---|---|---|
| 2006 | 1 |
14.3%
|
|
| 2007 | 1 |
14.3%
|
|
| 2009 | 3 |
42.9%
|
|
| 2010 | 1 |
14.3%
|
|
| 2011 | 1 |
14.3%
|
|
| Sysmiss | 12400 |