| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1435 |
95.1%
|
| 2 | Rarely (once or twice in the month) | 57 |
3.8%
|
| 3 | Sometimes (three to ten times in the month) | 15 |
1%
|
| 4 | Often (more than ten times in the month) | 2 |
0.1%
|
| Sysmiss | 4491 |