| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1269 |
88.8%
|
| 1 | 1. once a day | 25 |
1.7%
|
| 2 | 2. 2 or more times a day | 32 |
2.2%
|
| 3 | 3. once a week | 43 |
3%
|
| 4 | 4. once a month | 60 |
4.2%
|
| Sysmiss | 134 |