| Valor | Categoría | Casos | |
|---|---|---|---|
| 0 | 16 |
80%
|
|
| 1 | 1 |
5%
|
|
| 3 | 1 |
5%
|
|
| 4 | 1 |
5%
|
|
| 9 | 1 |
5%
|
|
| Sysmiss | 4 |