| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 15 |
3.7%
|
|
| 2014 | 10 |
2.5%
|
|
| 2015 | 76 |
18.9%
|
|
| 2016 | 186 |
46.2%
|
|
| 2017 | 116 |
28.8%
|
|
| Sysmiss | 2348 |