| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 4 |
0.2%
|
|
| 2013 | 27 |
1.6%
|
|
| 2014 | 159 |
9.6%
|
|
| 2015 | 197 |
11.9%
|
|
| 2016 | 242 |
14.6%
|
|
| 2017 | 683 |
41.3%
|
|
| 2018 | 343 |
20.7%
|
|
| Sysmiss | 8498 |