| Value | Category | Cases | |
|---|---|---|---|
| 1 | In a pit | 293 |
21.9%
|
| 2 | In an uncovered heap | 250 |
18.7%
|
| 3 | In a covered heap | 728 |
54.5%
|
| 4 | Other specify | 66 |
4.9%
|
| Sysmiss | 7238 |