| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2017 or earlier | 101 |
19%
|
| 2 | 2018 | 191 |
36%
|
| 3 | 2019 | 211 |
39.7%
|
| 4 | 2020 | 28 |
5.3%
|
| Missing value | 91 |