| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 26 |
19.1%
|
| 1 | Never | 18 |
13.2%
|
| 2 | Once a week | 56 |
41.2%
|
| 3 | Between 2 and 4 times a week | 23 |
16.9%
|
| 4 | Daily | 12 |
8.8%
|
| 5 | More than once a day | 1 |
0.7%
|
| Sysmiss | 226 |