| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 214 |
56.2%
|
| 2 | gentle slope | 109 |
28.6%
|
| 3 | steep slope | 52 |
13.6%
|
| 4 | hilly | 1 |
0.3%
|
| 5 | valley | 5 |
1.3%
|
| Sysmiss | 150 |