| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 0 |
0%
|
| 1 | Yes | 132 |
27.5%
|
| 2 | No | 348 |
72.5%
|
| Sysmiss | 1297 |