| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 516 |
2.8%
|
|
| 2017 | 1049 |
5.7%
|
|
| 2018 | 1301 |
7.1%
|
|
| 2019 | 103 |
0.6%
|
|
| 9999 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 15342 |
83.8%
|