| Value | Category | Cases | |
|---|---|---|---|
| 2017 | 1023 |
23.8%
|
|
| 2018 | 1489 |
34.7%
|
|
| 2019 | 1540 |
35.8%
|
|
| 2020 | 244 |
5.7%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 26524 |