| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2017 or earlier | 5 |
26.3%
|
| 2 | 2018 | 5 |
26.3%
|
| 3 | 2019 | 7 |
36.8%
|
| 4 | 2020 | 2 |
10.5%
|
| Missing value | 1856 |