| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 322 |
67.9%
|
| 2 | gentle slope | 109 |
23%
|
| 3 | steep slope | 1 |
0.2%
|
| 4 | hilly | 34 |
7.2%
|
| 5 | valley | 8 |
1.7%
|
| Sysmiss | 222 |