| Value | Category | Cases | |
|---|---|---|---|
| -97 | (Don't read) Refused to answer | 1 |
0.1%
|
| 1 | Not at all or less than one day | 172 |
21.5%
|
| 2 | Several days | 371 |
46.4%
|
| 3 | More than half a day to a day | 43 |
5.4%
|
| 4 | Nearly everyday | 213 |
26.6%
|