| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 34 |
6.9%
|
| 1 | 1-2 times | 151 |
30.6%
|
| 2 | 2-5 times | 72 |
14.6%
|
| 3 | More than 5 times | 237 |
48%
|
| Sysmiss | 8595 |