| Value | Category | Cases | |
|---|---|---|---|
| 2017 | 579 |
15.7%
|
|
| 2018 | 1338 |
36.2%
|
|
| 2019 | 1504 |
40.7%
|
|
| 2020 | 275 |
7.4%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 10938 |