| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 363 |
2%
|
|
| 2017 | 882 |
4.8%
|
|
| 2018 | 1075 |
5.9%
|
|
| 2019 | 59 |
0.3%
|
|
| 9999 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 15932 |
87%
|