| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 1458 |
73.3%
|
| 2 | Once | 11 |
0.6%
|
| 3 | More than once | 1 |
0.1%
|
| 4 | Not applicable | 515 |
25.9%
|
| Sysmiss | 3 |