| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 213 |
53.1%
|
| 2 | Twice a week | 18 |
4.5%
|
| 3 | Once a week | 55 |
13.7%
|
| 6 | Others | 85 |
21.2%
|
| 8 | 23 |
5.7%
|
|
| 9 | 7 |
1.7%
|
|
| Sysmiss | 10515 |