| Value |
Category |
| 1 |
don't treat the water |
| 2 |
boiling |
| 3 |
sedimentation |
| 4 |
chemical |
| 5 |
filtering |
| 6 |
other |
| 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.