| Value | Category | Cases | |
|---|---|---|---|
| 1 | Flat | 10640 |
51.1%
|
| 2 | Slight slope | 7102 |
34.1%
|
| 3 | Moderate slope | 2074 |
10%
|
| 4 | Steep hilly | 987 |
4.7%
|
| Sysmiss | 53 |