| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 691 |
34.8%
|
| 2 | Once | 1 |
0.1%
|
| 3 | More than once | 0 |
0%
|
| 4 | Not applicable | 1290 |
64.9%
|
| Sysmiss | 6 |