| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | per week | 45 | 57 |
14.4%
|
| 2 | per month | 95 | 106 |
27%
|
| 3 | per year | 26 | 27 |
6.9%
|
| 4 | none | 196 | 203 |
51.7%
|
| Sysmiss | 1794 | 1469 |