| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1 |
0.1%
|
| 2 | No | 18 |
2.5%
|
| 3 | No, but indicated | 2 |
0.3%
|
| 8 | Unknown | 4 |
0.6%
|
| 88 | N/A | 686 |
96.5%
|
| Sysmiss | 870 |