| Value | Category | Cases | |
|---|---|---|---|
| -97 | (Don't read) Refused to answer | 1 |
0.1%
|
| 1 | Not at all or less than one day | 163 |
20%
|
| 2 | Several days | 344 |
42.3%
|
| 3 | More than half a day to a day | 43 |
5.3%
|
| 4 | Nearly everyday | 262 |
32.2%
|