| Value | Category | Cases | |
|---|---|---|---|
| -1 | True missing | 14 |
0.3%
|
| 1 | Not at all | 3237 |
59.1%
|
| 2 | Several days | 1383 |
25.2%
|
| 3 | More than half the days | 498 |
9.1%
|
| 4 | Nearly every day | 331 |
6%
|
| 99 | Refused to answer | 16 |
0.3%
|