| Value |
Category |
| 1 |
boiling |
| 2 |
use traditional herbs |
| 3 |
use chemicals |
| 4 |
filters/sieves |
| 5 |
decant |
| 6 |
chemicals |
| 7 |
nothing |
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.