| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not present | 2 |
25%
|
| 1 | Yes, seen | 6 |
75%
|
| 2 | Yes, not seen | 0 |
0%
|
| 9 | No response | 0 |
0%
|
| Sysmiss | 7 |