| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 4 |
3.6%
|
| 1 | 1-2 times | 31 |
27.7%
|
| 2 | 2-5 times | 28 |
25%
|
| 3 | More than 5 times | 49 |
43.8%
|
| Sysmiss | 8977 |