| Value | Category | Cases | |
|---|---|---|---|
| 1 | no | 1165 |
22.8%
|
| 2 | Once | 0 |
0%
|
| 3 | More than once | 3 |
0.1%
|
| 4 | Not applicable | 3935 |
77.1%
|
| Sysmiss | 2 |