| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 1159 |
49.5%
|
| 1 | Less than once a week | 517 |
22.1%
|
| 2 | At least once a week | 450 |
19.2%
|
| 3 | Almost every day | 217 |
9.3%
|
| 9 | Missing | 3 | |
| Sysmiss | 226 |