| Value | Category | Cases | |
|---|---|---|---|
| 1 | Earth/Canvas | 18809 |
30.7%
|
| 2 | Wood | 1914 |
3.1%
|
| 3 | Cement | 27071 |
44.1%
|
| 4 | Carpet | 13548 |
22.1%
|
| Sysmiss | 54 |