| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 786 |
55%
|
| 1 | 1. once a day | 95 |
6.6%
|
| 2 | 2. 2 or more times a day | 502 |
35.1%
|
| 3 | 3. once a week | 34 |
2.4%
|
| 4 | 4. once a month | 12 |
0.8%
|
| Sysmiss | 134 |