| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 15 |
71.4%
|
| 1 | 1-2 times | 2 |
9.5%
|
| 2 | 2-5 times | 3 |
14.3%
|
| 3 | More than 5 times | 1 |
4.8%
|
| Sysmiss | 9068 |