| Value | Category | Cases | |
|---|---|---|---|
| 1 | Concrete | 113 |
21.2%
|
| 2 | Logs | 51 |
9.6%
|
| 3 | Plastic | 0 |
0%
|
| 4 | Sand/Mud | 367 |
68.9%
|
| 5 | Other | 2 |
0.4%
|
| Sysmiss | 151 |