| Value | Category | Cases | |
|---|---|---|---|
| 1 | open fire | 5736 |
76.5%
|
| 2 | open stove/coal pot | 140 |
1.9%
|
| 3 | closed stove | 7 |
0.1%
|
| 6 | other | 1 |
0%
|
| 9 | missing | 7 |
0.1%
|
| Sysmiss | 1608 |
21.4%
|