| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 48 |
25.3%
|
| 2 | gentle slope | 130 |
68.4%
|
| 3 | steep slope | 6 |
3.2%
|
| 4 | valley | 4 |
2.1%
|
| 5 | 96 | 2 |
1.1%
|
| Sysmiss | 164 |