| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2011 | 6 |
5.3%
|
| 2 | 2012 | 1 |
0.9%
|
| 3 | 2013 | 1 |
0.9%
|
| 4 | 2014 | 106 |
93%
|
| Sysmiss | 1386 |