| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1598 |
69.5%
|
| 2 | 1 day | 345 |
15%
|
| 3 | 2-5days | 266 |
11.6%
|
| 4 | More than a week | 37 |
1.6%
|
| 5 | More than a month | 52 |
2.3%
|
| Sysmiss | 1029 |