| Value | Category | Cases | |
|---|---|---|---|
| 1 | Boiling | 2584 |
26.7%
|
| 2 | Filtration | 90 |
0.9%
|
| 3 | Sedimentation | 58 |
0.6%
|
| 4 | Disinfection | 1248 |
12.9%
|
| 5 | Used bottled water | 119 |
1.2%
|
| 6 | Do not treat water | 5571 |
57.5%
|
| 96 | Other | 21 |
0.2%
|
| Sysmiss | 359 |