| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a day | 505 |
37%
|
| 2 | More than once a day | 367 |
26.9%
|
| 3 | Less than once a day | 468 |
34.3%
|
| 4 | Never | 25 |
1.8%
|
| Sysmiss | 7 |