| Valor | Categoría | Casos | |
|---|---|---|---|
| 1 | 222 |
8.7%
|
|
| 2 | 267 |
10.5%
|
|
| 3 | 1918 |
75.4%
|
|
| 4 | 138 |
5.4%
|
|
| Sysmiss | 7299 |