| Value |
Category |
| 1 |
open fire/stove without chimney |
| 2 |
open fire/stove under chimney/hood |
| 3 |
closed stove with chimney/flue |
| 4 |
|
| 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.