| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1 |
0.1%
|
| 2 | No | 8 |
1.1%
|
| 3 | No, but indicated | 7 |
1%
|
| 8 | Unknown | 7 |
1%
|
| 88 | N/A | 688 |
96.8%
|
| Sysmiss | 870 |