| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 269 |
7.4%
|
| 2 | Once a week | 350 |
9.6%
|
| 3 | Once a month | 286 |
7.9%
|
| 4 | Not at all | 871 |
24%
|
| Sysmiss | 1858 |