| Value | Category |
|---|---|
| 10 | natural |
| 11 | Earth/sand |
| 12 | Dung |
| 13 | Mud and hay |
| 20 | rudimentary |
| 21 | Wood planks |
| 30 | finished |
| 31 | Parquet or polished wood |
| 32 | Vinyl or asphalt strips |
| 33 | Ceramic tiles |
| 34 | Cement |
| 35 | Rug or mat |
| 36 | Carpet |
| 96 | Other |
| 97 | Not a usual resident |
| 101 | .C |
| 2147483624 | Missing |