| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing | 0 |
0%
|
| -1 | Refusal | 1 |
0.1%
|
| 0 | No | 51 |
7.5%
|
| 1 | Yes | 629 |
92.4%
|
| Sysmiss | 1464 |