| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing | 0 |
0%
|
| -1 | Refused | 0 |
0%
|
| 1 | Yes | 785 |
88.5%
|
| 2 | No | 102 |
11.5%
|
| Sysmiss | 1950 |