| Value | Category | Cases | |
|---|---|---|---|
| 0 | Aquatabs/water purification tablets | 18 |
37.5%
|
| 1 | Liquid chlorine | 29 |
60.4%
|
| 2 | Powder or granular chlorine | 1 |
2.1%
|
| Sysmiss | 206 |