| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 0 |
0%
|
| 2 | Several days a week | 0 |
0%
|
| 3 | Once a week | 1 |
25%
|
| 4 | Once a month | 1 |
25%
|
| 5 | Occasionally / when necessary | 2 |
50%
|
| Sysmiss | 4661 |