| Value | Category | Cases | |
|---|---|---|---|
| 0 | 58 |
36.9%
|
|
| 1 | Once | 25 |
15.9%
|
| 2 | Few times | 50 |
31.8%
|
| 3 | Many times | 24 |
15.3%
|
| Sysmiss | 664 |