| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | at least once a day | 542 |
18.4%
|
| 2 | at least once a week | 810 |
27.5%
|
| 3 | least often than once a week | 1282 |
43.5%
|
| 4 | never | 312 |
10.6%
|
| Sysmiss | 54 |