| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 35 |
2.3%
|
| 2 | Rarely (once or twice in the month) | 1006 |
66.7%
|
| 3 | Sometimes (three to ten times in the month) | 339 |
22.5%
|
| 4 | Often (more than ten times in the month) | 129 |
8.5%
|
| Sysmiss | 4491 |