| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1 |
0.3%
|
|
| 2013 | 1 |
0.3%
|
|
| 2015 | 1 |
0.3%
|
|
| 2017 | 7 |
1.9%
|
|
| 2018 | 120 |
33%
|
|
| 2019 | 234 |
64.3%
|
|
| Sysmiss | 3663 |