Value | Category | Cases | |
---|---|---|---|
1 | don't treat the water | 2578 |
95.6%
|
2 | boiling | 93 |
3.4%
|
3 | sedimentation | 16 |
0.6%
|
4 | chemical | 8 |
0.3%
|
5 | filtering | 1 |
0%
|
6 | other | 0 |
0%
|
Sysmiss | 220 |