| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 100 |
61.7%
|
| 2 | gentle slope | 53 |
32.7%
|
| 3 | steep slope | 5 |
3.1%
|
| 4 | hilly | 2 |
1.2%
|
| 5 | valley | 2 |
1.2%
|
| Sysmiss | 100 |