| Value | Category | Cases | |
|---|---|---|---|
| 1 | Earth | 596 |
18.7%
|
| 2 | Wood (plywood) | 12 |
0.4%
|
| 3 | Stone/brick | 5 |
0.2%
|
| 4 | Cement | 2534 |
79.5%
|
| 5 | Tile | 20 |
0.6%
|
| 6 | Bamboo | 1 |
0%
|
| 7 | Other (Specify...........) | 21 |
0.7%
|
| Sysmiss | 1 |