| Value | Category | Cases | |
|---|---|---|---|
| 0 | I don't know what it is | 36 |
1.4%
|
| 1 | Never or almost never | 220 |
8.3%
|
| 2 | several times a week | 846 |
31.8%
|
| 3 | several times a month | 412 |
15.5%
|
| 4 | several times a day | 1144 |
43%
|
| Sysmiss | 1593 |