| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 320 |
15.2%
|
| 1 | Rarely (once or twice in the past 30 days) | 696 |
33%
|
| 2 | Sometimes (three to ten times in the past 30 days) | 647 |
30.6%
|
| 3 | Often (more than ten times in the past 30 days) | 316 |
15%
|
| 4 | Always (every day) | 133 |
6.3%
|
| Sysmiss | 2 |