| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 55 |
67.1%
|
| 1 | 1-2 times | 11 |
13.4%
|
| 2 | 2-5 times | 10 |
12.2%
|
| 3 | More than 5 times | 6 |
7.3%
|
| Sysmiss | 9007 |