| Complaint On | Year | Count |
|---|---|---|
| Public sector | 2018 | 293 |
| Federations and unions | 2021 | 33 |
| Federations and unions | 2020 | 30 |
| Federations and unions | 2019 | 13 |
| Federations and unions | 2018 | 0 |
| Public sector | 2019 | 456 |
| Public sector | 2020 | 616 |
| Public sector | 2021 | 468 |
| local authorities | 2018 | 159 |
| local authorities | 2019 | 245 |
| local authorities | 2020 | 357 |
| local authorities | 2021 | 299 |
| Associations | 2018 | 12 |
| Associations | 2019 | 36 |
| Associations | 2020 | 42 |
| Associations | 2021 | 40 |
| Not submissive | 2018 | 11 |
| Not submissive | 2019 | 21 |
| Not submissive | 2020 | 39 |
| Not submissive | 2021 | 21 |