| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mud | 2064 |
91.8%
|
| 2 | Brick | 53 |
2.4%
|
| 3 | Cement/stone/tile | 128 |
5.7%
|
| 4 | Other | 3 |
0.1%
|
| Sysmiss | 3 |