| Value | Category | Cases | |
|---|---|---|---|
| 1 | Everyday | 4648 |
46.9%
|
| 2 | A few times in a week | 1542 |
15.6%
|
| 3 | Once a week | 180 |
1.8%
|
| 4 | A few times in a month | 1022 |
10.3%
|
| 5 | Once a month | 138 |
1.4%
|
| 6 | Never | 2385 |
24.1%
|
| Sysmiss | 7676 |