| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 900 |
63%
|
| 1 | 1. once a day | 89 |
6.2%
|
| 2 | 2. 2 or more times a day | 377 |
26.4%
|
| 3 | 3. once a week | 36 |
2.5%
|
| 4 | 4. once a month | 27 |
1.9%
|
| Sysmiss | 134 |