| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rudimentary (grass/dung) | 10 |
0.2%
|
| 2 | Improved materials (iron/tin/nylon/cardboard | 2573 |
53.2%
|
| 3 | Refined materials (concrete/cement/tiles | 2255 |
46.6%
|