| Value | Category | Cases | |
|---|---|---|---|
| 1 | Flat | 2063 |
51.3%
|
| 2 | Slight slope | 1460 |
36.3%
|
| 3 | Moderate slope | 389 |
9.7%
|
| 4 | Steep, hilly | 111 |
2.8%
|
| Sysmiss | 19 |