| Value | Category | Cases | |
|---|---|---|---|
| 1 | Arrastre hidráulico | 2961 |
32.3%
|
| 2 | Hoyo seco | 6072 |
66.1%
|
| 3 | Compostera seca | 137 |
1.5%
|
| 4 | Compostera húmeda | 10 |
0.1%
|
| Sysmiss | 33180 |