| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 129 |
10.4%
|
| 1 | Rarely (once or twice a month) | 259 |
20.9%
|
| 2 | Sometimes (three or four times a month) | 320 |
25.8%
|
| 3 | Often (more than 6 times per month) | 414 |
33.4%
|
| 4 | Always (every day) | 116 |
9.4%
|
| Sysmiss | 5 |