| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 18 |
5.7%
|
| 1 | 1-2 times | 89 |
28.3%
|
| 2 | 2-5 times | 51 |
16.2%
|
| 3 | More than 5 times | 157 |
49.8%
|
| Sysmiss | 8774 |