| Value | Category | Cases | |
|---|---|---|---|
| -999 | NA | 1 |
0.1%
|
| 1 | Never wash with soap and water | 1 |
0.1%
|
| 2 | Once per day | 8 |
0.9%
|
| 3 | Twice per day | 30 |
3.2%
|
| 4 | Three times per day | 109 |
11.6%
|
| 5 | Four times per day | 127 |
13.5%
|
| 6 | Five times per day | 144 |
15.3%
|
| 7 | More than five times per day | 521 |
55.4%
|