| Value | Category | Cases | |
|---|---|---|---|
| -7 | Not applicable | 0 |
0%
|
| 1 | Concrete | 166 |
10.3%
|
| 2 | Bricks | 11 |
0.7%
|
| 3 | Stone | 19 |
1.2%
|
| 4 | Cement screed | 562 |
35%
|
| 5 | Rammed earth | 773 |
48.1%
|
| 6 | Wood | 3 |
0.2%
|
| 7 | Tiles | 26 |
1.6%
|
| 97 | Other, specify | 46 |
2.9%
|
| 888 | Don’t know | 0 |
0%
|
| 999 | Prefer not to respond | 1 |
0.1%
|