| Value |
Category |
| 1 |
Flat upland |
| 2 |
Flat lowland |
| 3 |
Both upland and lowland |
| 4 |
Slightly sloped |
| 5 |
Steep slope |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.