| Valor | Categoría | Casos | |
|---|---|---|---|
| 1 | 308 |
13.5%
|
|
| 2 | 1190 |
52.2%
|
|
| 3 | 492 |
21.6%
|
|
| 4 | 288 |
12.6%
|
|
| Sysmiss | 7558 |