| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
20.3%
|
| 1 | Never | 0 |
0%
|
| 2 | Once a week | 9 |
15.3%
|
| 3 | Between 2 and 4 times a week | 17 |
28.8%
|
| 4 | Daily | 21 |
35.6%
|
| 5 | More than once a day | 0 |
0%
|
| Sysmiss | 212 |