| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | 1 |
0%
|
|
| 1 | Not at all | 76128 |
67.1%
|
| 2 | Several days | 26170 |
23.1%
|
| 3 | More than half the days | 4137 |
3.6%
|
| 4 | Nearly every day | 7026 |
6.2%
|
| Sysmiss | 35818 |