| Valor | Categoría | Casos | |
|---|---|---|---|
| Abierta | 5255 |
8%
|
|
| Cerrada | 57245 |
87.4%
|
|
| Dnivel | 1488 |
2.3%
|
|
| Hg | 59 |
0.1%
|
|
| Led | 1471 |
2.2%
|
|
| Na | 17 |
0%
|