| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2011 | 150 |
26.7%
|
| 2 | 2010 | 11 |
2%
|
| 3 | 2009 | 1 |
0.2%
|
| 4 | 2008 | 0 |
0%
|
| 5 | 2012 | 400 |
71.2%
|
| Sysmiss | 218 |