| Value | Category | Cases | |
|---|---|---|---|
| 1 | wood/boards | 5 |
0.9%
|
| 2 | clay | 43 |
7.3%
|
| 3 | cement | 455 |
77.4%
|
| 4 | mosaic | 57 |
9.7%
|
| 5 | Ceramic/terrazzo/marble | 27 |
4.6%
|
| 97 | Other, specify | 1 |
0.2%
|
| 98 | Don't know/Not sure | 0 |
0%
|