| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 367 |
2%
|
|
| 2017 | 887 |
4.8%
|
|
| 2018 | 1077 |
5.9%
|
|
| 2019 | 62 |
0.3%
|
|
| 9999 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 15918 |
86.9%
|