| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2017 or earlier | 17 |
27.9%
|
| 2 | 2018 - 2019 | 38 |
62.3%
|
| 3 | 2020 - 2021 | 6 |
9.8%
|
| Missing value | 18 |