| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO TREATMENT | 38533 |
85.6%
|
| 2 | BOIL | 657 |
1.5%
|
| 3 | ADD CHLORINE | 5659 |
12.6%
|
| 4 | ADD IODINE | 136 |
0.3%
|
| 15 | 10 |
0%
|
|
| 96 | OTHER, SPECIFY | 6 |
0%
|
| 99 | 7 |
0%
|
|
| Sysmiss | 53 |