| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 1442 |
72.5%
|
| 2 | Once | 19 |
1%
|
| 3 | More than once | 6 |
0.3%
|
| 4 | Not applicable | 516 |
26%
|
| Sysmiss | 5 |