| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1253 |
89.4%
|
| 1 | 1. once a day | 42 |
3%
|
| 2 | 2. 2 or more times a day | 40 |
2.9%
|
| 3 | 3. once a week | 26 |
1.9%
|
| 4 | 4. once a month | 41 |
2.9%
|
| Sysmiss | 161 |