| Value | Category | Cases | |
|---|---|---|---|
| -9 | No sabe | 3 |
0.8%
|
| 1 | Declaración formal (escrita) | 122 |
33.9%
|
| 2 | Instrucciones informales (orales) | 74 |
20.6%
|
| 3 | Ninguno | 161 |
44.7%
|
| Sysmiss | 2275 |