Variable's CODE LIST: PL220_F (1708,0) Anno: 2021
| Code | Description | Upper Code | Notes |
| 1 | Filled | ||
| -1 | Missing | ||
| -2 | Not applicable (PL211A-PL211L not in (1, 2, 3 or 4)) | ||
| -3 | Not applicable (Non-selected respondent (RB245 equal to 3)) | ||
| -4 | Not applicable (The work was finished before pandemic started) | ||
| -7 | Not applicable (PB010 < 2021) | ||
| -8 | Not applicable (variable not collected) |