| Value |
Category |
| -9 |
Missing Data |
| 1 |
Concrete only |
| 2 |
Covered concrete |
| 3 |
Mud |
| 4 |
Wood only |
| 5 |
Other |
| 6 |
Does not know |
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.