| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 1886 |
94.9%
|
| 2 | Once | 36 |
1.8%
|
| 3 | More than once | 41 |
2.1%
|
| 4 | Not applicable | 20 |
1%
|
| Sysmiss | 5 |