| Value | Category | Cases | |
|---|---|---|---|
| -88 | Other (specify) | 1 |
0.2%
|
| 1 | Only water | 0 |
0%
|
| 2 | Soap | 1 |
0.2%
|
| 3 | Ash | 203 |
31.8%
|
| 4 | Soil | 434 |
67.9%
|
| 5 | None | 0 |
0%
|
| Sysmiss | 1496 |