| Value | Category | Cases | |
|---|---|---|---|
| 2017 | 1011 |
23.7%
|
|
| 2018 | 1483 |
34.7%
|
|
| 2019 | 1534 |
35.9%
|
|
| 2020 | 244 |
5.7%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 26548 |