| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | YES, BY BOILING | 293 | 479735 |
1.4%
|
| 2 | YES, BY FILTERING | 1981 | 3163115 |
9.2%
|
| 3 | YES, BY CHEMICAL TREATMENT | 1877 | 2348538 |
6.9%
|
| 4 | YES, USING BOTTLED WATER | 6788 | 10226064 |
29.9%
|
| 5 | NO | 14206 | 17985805 |
52.6%
|
| Sysmiss | 1 | 1781 |