| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | per week | 262 | 297 |
67.8%
|
| 2 | per month | 91 | 89 |
20.3%
|
| 3 | per year | 9 | 6 |
1.4%
|
| 4 | none | 49 | 46 |
10.5%
|
| Sysmiss | 1745 | 1423 |