| Value | Category | Cases | |
|---|---|---|---|
| -999 | No sabe | 0 |
0%
|
| -888 | No contesta | 0 |
0%
|
| 0 | No | 4 |
0.1%
|
| 1 | Sí | 3722 |
99.9%
|
| Sysmiss | 2802 |