| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a week | 1925 |
19%
|
| 2 | 2 to 3 times a week | 2773 |
27.4%
|
| 3 | More than 4 times a week | 669 |
6.6%
|
| 4 | Daily | 4302 |
42.6%
|
| 5 | Others | 421 |
4.2%
|
| 9 | No answer | 15 |
0.1%
|
| Sysmiss | 5368 |