| Value | Category | Cases | |
|---|---|---|---|
| 2018 | 161 |
62.2%
|
|
| 2019 | 89 |
34.4%
|
|
| 2020 | 9 |
3.5%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 14375 |