| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 57 |
41.9%
|
| 2 | gentle slope | 57 |
41.9%
|
| 3 | steep slope | 7 |
5.1%
|
| 4 | hilly | 9 |
6.6%
|
| 5 | other. specify: | 1 |
0.7%
|
| 6 | valley | 5 |
3.7%
|
| Sysmiss | 58 |