| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 308 |
86%
|
| 2 | Twice a week | 14 |
3.9%
|
| 3 | Once a week | 18 |
5%
|
| 6 | Others | 18 |
5%
|
| Sysmiss | 10558 |