| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 208 |
17.7%
|
| 2 | Once a week | 219 |
18.6%
|
| 3 | Twice a week | 114 |
9.7%
|
| 4 | Once a month | 634 |
54%
|
| Sysmiss | 3221 |