| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 40 |
0.2%
|
| 0 | No | 9280 |
40%
|
| 1 | Yes | 13366 |
57.6%
|
| 9 | Can't determine | 511 |
2.2%
|
| Sysmiss | 1104 |