| Valor | Categoría | Casos | |
|---|---|---|---|
| 15 | 13 |
12.6%
|
|
| 16 | 24 |
23.3%
|
|
| 17 | 32 |
31.1%
|
|
| 18 | 33 |
32%
|
|
| 19 | 1 |
1%
|
|
| Sysmiss | 20407 |