| Valor | Categoría | Casos | |
|---|---|---|---|
| 2 | 1 |
0.5%
|
|
| 3 | 16 |
7.7%
|
|
| 4 | 55 |
26.4%
|
|
| 5 | 136 |
65.4%
|
|
| Sysmiss | 247 |