| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (once or twice) | 140 |
20.6%
|
| 2 | Sometimes (3 to 10 times) | 404 |
59.4%
|
| 3 | Often (more than 10 times) | 136 |
20%
|
| Sysmiss | 512 |