| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 366 |
62.9%
|
| 2 | gentle slope | 146 |
25.1%
|
| 3 | steep slope | 14 |
2.4%
|
| 4 | hilly | 37 |
6.4%
|
| 5 | other. specify: | 4 |
0.7%
|
| 6 | valley | 15 |
2.6%
|
| Sysmiss | 196 |