| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 167 |
30.3%
|
|
| 2013 | 356 |
64.5%
|
|
| 2014 | 26 |
4.7%
|
|
| 2015 | 3 |
0.5%
|
|
| Sysmiss | 2587 |