| Value | Category | Cases | |
|---|---|---|---|
| 1 | Flat | 666 |
70.6%
|
| 2 | Gently sloped | 206 |
21.8%
|
| 3 | Steep | 60 |
6.4%
|
| 4 | Mixed | 11 |
1.2%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 108 |