| Value | Category | Cases | |
|---|---|---|---|
| 1 | Soil/sand | 39 |
1.5%
|
| 2 | Concrete/cement | 1719 |
67.4%
|
| 3 | Wood | 24 |
0.9%
|
| 4 | Floor tile | 761 |
29.8%
|
| 5 | Other (specify) | 1 |
0%
|
| 8 | DK | 6 |
0.2%
|
| Sysmiss | 22394 |