| Value | Category | Cases | |
|---|---|---|---|
| 1 | Earth or mud | 6519 |
34%
|
| 2 | Wood or tile | 262 |
1.4%
|
| 3 | Plank | 273 |
1.4%
|
| 4 | Concrete | 10137 |
52.9%
|
| 5 | Dirt or straw | 838 |
4.4%
|
| 6 | Other | 1129 |
5.9%
|