| Value | Category | Cases | |
|---|---|---|---|
| -9 | Another type | 0 |
0%
|
| -8 | Don't you know | 0 |
0%
|
| -7 | Prefers not to disclose | 0 |
0%
|
| 1 | Sandy | 83 |
21.3%
|
| 2 | Lemons | 74 |
19%
|
| 3 | Clayey | 232 |
59.6%
|
| Sysmiss | 2249 |