| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 22 |
0.9%
|
| 2 | No | 642 |
25.9%
|
| 3 | Unknown | 1292 |
52.1%
|
| 4 | Data not recorded | 526 |
21.2%
|
| Sysmiss | 69 |