| Value |
Category |
| 1 |
septic tank |
| 2 |
pond/field |
| 3 |
river/lake/ocean |
| 4 |
hole |
| 5 |
shore/open field |
| 6 |
others |
| 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.