| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. every day | 0 |
0%
|
| 2 | 2. several times per week | 0 |
0%
|
| 3 | 3. several times per month | 1 |
100%
|
| 4 | 4. several times per year | 0 |
0%
|
| 5 | 5. never | 0 |
0%
|
| 9 | 9. don't know | 0 |
0%
|
| Sysmiss | 98 |