| Value | Category |
|---|---|
| 1 | Flushing, in the dwelling unit |
| 2 | Flushing, outside the dwelling unit, for exclusive use by the household |
| 3 | Flushing, outside the dwelling unit, for common use |
| 4 | Non-flushing, outside the dwelling unit, for exclusive use by the household |
| 5 | Non-flushing, outside the dwelling unit, for common use |
| 6 | Other |