| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 976 |
68.3%
|
| 1 | 1. once a day | 118 |
8.3%
|
| 2 | 2. 2 or more times a day | 171 |
12%
|
| 3 | 3. once a week | 94 |
6.6%
|
| 4 | 4. once a month | 70 |
4.9%
|
| Sysmiss | 134 |