| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 38 |
73.1%
|
| 1 | 1-2 times | 8 |
15.4%
|
| 2 | 2-5 times | 3 |
5.8%
|
| 3 | More than 5 times | 3 |
5.8%
|
| Sysmiss | 9037 |