| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (once or twice in the past four weeks) | 494 |
70.4%
|
| 2 | Sometimes (three to ten times in the past four weeks) | 178 |
25.4%
|
| 3 | Often (more than ten times in the past four weeks) | 30 |
4.3%
|
| Sysmiss | 2211 |