| Value | Category | Cases | |
|---|---|---|---|
| 1 | almost every day | 4230 |
27.6%
|
| 2 | at least once a week | 2190 |
14.3%
|
| 3 | less than once a week | 3466 |
22.6%
|
| 4 | not at all | 5457 |
35.6%
|
| Sysmiss | 8 |