| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Never | 6 |
5.3%
|
| 2 | Once a week | 42 |
36.8%
|
| 3 | Between 2 and 4 times a week | 15 |
13.2%
|
| 4 | Daily | 47 |
41.2%
|
| 5 | More than once a day | 4 |
3.5%
|
| Sysmiss | 246 |