| Valor | Categoría | Casos | |
|---|---|---|---|
| 1 | 307 |
10.2%
|
|
| 2 | 364 |
12.1%
|
|
| 3 | 1769 |
58.9%
|
|
| 4 | 561 |
18.7%
|
|
| Sysmiss | 6835 |