| Value |
Category |
| 1 |
up to 5 km |
| 2 |
6-20 |
| 3 |
21-50 |
| 4 |
over 50 km |
| 5 |
I work at home |
| 6 |
I work in the field |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.