| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 40 |
0.2%
|
| 0 | No | 12399 |
53.5%
|
| 1 | Yes | 10347 |
44.6%
|
| 9 | Can't determine | 411 |
1.8%
|
| Sysmiss | 1104 |