| Valor | Categoría | Casos | |
|---|---|---|---|
| 0 | 152 |
80%
|
|
| 1 | 30 |
15.8%
|
|
| 2 | 4 |
2.1%
|
|
| 3 | 1 |
0.5%
|
|
| 4 | 2 |
1.1%
|
|
| 20 | 1 |
0.5%
|
|
| Sysmiss | 3550 |