| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 386 |
25.6%
|
| 2 | Rarely (once or twice in the month) | 853 |
56.5%
|
| 3 | Sometimes (three to ten times in the month) | 204 |
13.5%
|
| 4 | Often (more than ten times in the month) | 66 |
4.4%
|
| Sysmiss | 4491 |