| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. per day | 353 |
1.8%
|
| 2 | 2. per week | 3659 |
18.4%
|
| 3 | 3. per month | 13715 |
68.8%
|
| 4 | 4. per year | 2203 |
11.1%
|
| Sysmiss | 2313509 |