| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 44 |
0.2%
|
| 0 | No | 15646 |
67.4%
|
| 1 | Yes | 6998 |
30.2%
|
| 9 | Can't determine | 509 |
2.2%
|
| Sysmiss | 1104 |