| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO TREATMENT | 458 |
7.9%
|
| 2 | BOIL | 5311 |
91.6%
|
| 3 | ADD CHLORINE | 21 |
0.4%
|
| 4 | ADD IODINE | 1 |
0%
|
| 96 | OTHER, SPECIFY | 9 |
0.2%
|
| Sysmiss | 4 |