| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 75 |
67.6%
|
| 1 | 1-2 times | 19 |
17.1%
|
| 2 | 2-5 times | 8 |
7.2%
|
| 3 | More than 5 times | 9 |
8.1%
|
| Sysmiss | 8978 |