| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (1-2 times in past 30 days) | 176 |
66.4%
|
| 2 | Sometimes (3-10 times in past 30 days) | 80 |
30.2%
|
| 3 | Often (more than 10 times in past 30 days) | 9 |
3.4%
|
| Sysmiss | 2006 |