| Value | Category | Cases | |
|---|---|---|---|
| -97 | (Don't read) Refused to answer | 3 |
0.3%
|
| 1 | Not at all or less than one day | 197 |
21.3%
|
| 2 | Several days | 332 |
36%
|
| 3 | More than half a day to a day | 40 |
4.3%
|
| 4 | Nearly everyday | 351 |
38%
|