| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 135 |
69.6%
|
| 1 | 1-2 times | 29 |
14.9%
|
| 2 | 2-5 times | 12 |
6.2%
|
| 3 | More than 5 times | 18 |
9.3%
|
| Sysmiss | 8895 |