| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2017 or earlier | 727 |
17.6%
|
| 2 | 2018 | 1141 |
27.6%
|
| 3 | 2019 | 1367 |
33%
|
| 4 | 2020 | 686 |
16.6%
|
| 5 | 2021 | 220 |
5.3%
|
| Missing value | 68 |