| Omnibus | Deadline for confirmation of questions | Fieldwork Period | Days left to confirm questions |
|---|
| Omnibuss 2021 1 | 04/01/2021 | 14/01/2021 ... 26/01/2021 | 29 |
| Omnibuss 2021 2 | 25/01/2021 | 04/02/2021 ... 16/02/2021 | 50 |
| Omnibuss 2021 3 | 22/02/2021 | 04/03/2021 ... 16/03/2021 | 78 |
| Omnibuss 2021 4 | 22/03/2021 | 01/04/2021 ... 13/04/2021 | 106 |
| Omnibuss 2021 5 | 26/04/2021 | 06/05/2021 ... 18/05/2021 | 141 |
| Omnibuss 2021 6 | 24/05/2021 | 03/06/2021 ... 15/06/2021 | 169 |
| Omnibuss 2021 8 | 26/07/2021 | 05/08/2021 ... 17/08/2021 | 232 |
| Omnibuss 2021 9 | 23/08/2021 | 02/09/2021 ... 14/09/2021 | 260 |
| Omnibuss 2021 10 | 20/09/2021 | 30/09/2021 ... 12/10/2021 | 288 |
| Omnibuss 2021 11 | 18/10/2021 | 28/10/2021 ... 09/11/2021 | 316 |
| Omnibuss 2021 12 | 15/11/2021 | 25/11/2021 ... 07/12/2021 | 344 |
