| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 1 |
0%
|
| -96 | Other (specify) | 24 |
0.8%
|
| 1 | Water only | 1328 |
46.7%
|
| 2 | Soap, detergent or bleach | 1488 |
52.4%
|
| Sysmiss | 482 |