| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 3908 |
64.2%
|
| 2 | More than 4 times in a week | 687 |
11.3%
|
| 3 | 4 times in a week | 418 |
6.9%
|
| 4 | Less than 4 times in a week | 715 |
11.8%
|
| 5 | Never | 357 |
5.9%
|
| Sysmiss | 3775 |