| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mud/earth | 1109 |
23.2%
|
| 2 | Wood | 45 |
0.9%
|
| 3 | Tiles | 702 |
14.7%
|
| 4 | Cement/concrete | 2932 |
61.2%
|
| 9 | Other | 2 |
0%
|
| Sysmiss | 5 |