| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 790 |
55.3%
|
| 1 | 1. once a day | 148 |
10.4%
|
| 2 | 2. 2 or more times a day | 393 |
27.5%
|
| 3 | 3. once a week | 52 |
3.6%
|
| 4 | 4. once a month | 46 |
3.2%
|
| Sysmiss | 134 |