| Value | Category | Cases | |
|---|---|---|---|
| 1 | open fire | 38997 |
73.6%
|
| 2 | open stove/coal pot | 959 |
1.8%
|
| 3 | closed stove | 59 |
0.1%
|
| 6 | other | 10 |
0%
|
| 9 | missing | 63 |
0.1%
|
| Sysmiss | 12924 |
24.4%
|