| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 1828 |
92%
|
| 2 | Once | 84 |
4.2%
|
| 3 | More than once | 52 |
2.6%
|
| 4 | Not applicable | 21 |
1.1%
|
| Sysmiss | 3 |