| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 0 |
0%
|
| -66 | -66 (refuse to answer) | 0 |
0%
|
| 1 | hilltop (upland) | 32 |
7.7%
|
| 2 | hillside (upland) | 25 |
6%
|
| 3 | hill foot (upland) | 12 |
2.9%
|
| 4 | flat upland | 195 |
47%
|
| 5 | swamp (lowland) | 143 |
34.5%
|
| 6 | both upland and lowland | 8 |
1.9%
|
| Sysmiss | 964 |