| Value | Category | Cases | |
|---|---|---|---|
| 1 | >=5 days/week | 26 |
5.7%
|
| 2 | 1-4 days/week | 122 |
26.6%
|
| 3 | 1-3 days/month | 162 |
35.3%
|
| 4 | | 149 |
|
32.5%
|
| Sysmiss | 1296 |