| Value |
Category |
| -999 |
missing |
| -777 |
not applicable |
| -666 |
don't know |
| 1 |
VERY DIRTY |
| 2 |
DIRTY |
| 3 |
CLEAN |
| 4 |
VERY CLEAN |
| 7 |
NOT APPLICABLE |
| 8 |
DON'T KNOW |
| 9 |
MISSING |
| 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.