| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (once or twice in the past four weeks) | 437 |
63.1%
|
| 2 | Sometimes (three to ten times in the past four weeks) | 212 |
30.6%
|
| 3 | Often (more than ten times in the past four weeks) | 44 |
6.3%
|
| Sysmiss | 2220 |