| Value | Category | Cases | |
|---|---|---|---|
| 1 | flat | 1895 |
72.2%
|
| 2 | gentle slope | 407 |
15.5%
|
| 3 | steep slope | 37 |
1.4%
|
| 4 | hilly | 281 |
10.7%
|
| 5 | other. specify: | 4 |
0.2%
|
| Sysmiss | 873 |