Variable's CODE LIST: HY030N_F (315,0) Anno: 2020
| Code | Description | Upper Code | Notes |
| 0 | No income | ||
| 1 | Income (variable is filled) | ||
| -1 | Missing (As missing values are imputed, this code is only acceptable if imputation is not possible) | ||
| -5 | Not filled: variable of gross (...N) series is filled |