| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 489 |
39.6%
|
| 1 | Rarely (once or twice a month) | 349 |
28.2%
|
| 2 | Sometimes (three or four times a month) | 217 |
17.6%
|
| 3 | Often (more than 6 times per month) | 140 |
11.3%
|
| 4 | Always (every day) | 41 |
3.3%
|
| Sysmiss | 7 |