| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 1 |
8.3%
|
| 2 | Several days a week | 2 |
16.7%
|
| 3 | Once a week | 1 |
8.3%
|
| 4 | Once a month | 2 |
16.7%
|
| 5 | Occasionally / when necessary | 6 |
50%
|
| Sysmiss | 4653 |