| Valor | Categoría | Casos | |
|---|---|---|---|
| 1 | 2 |
0.5%
|
|
| 2 | 10 |
2.5%
|
|
| 3 | 35 |
8.9%
|
|
| 4 | 69 |
17.5%
|
|
| 5 | 278 |
70.6%
|
|
| Sysmiss | 61 |