| Value | Category | Cases | |
|---|---|---|---|
| 1 | Earth/mud | 86 |
1.4%
|
| 2 | Wood or tile | 18 |
0.3%
|
| 3 | Plank | 5 |
0.1%
|
| 4 | Concrete | 5885 |
98.1%
|
| 5 | Dirt/straw | 2 |
0%
|
| 6 | Other, specify | 5 |
0.1%
|