| Value | Category | Cases | |
|---|---|---|---|
| 1 | No waste visible | 747 |
30.2%
|
| 2 | Waste visible, protected area | 807 |
32.6%
|
| 3 | Waste visible, unprotected area | 763 |
30.9%
|
| 4 | Not inspected | 155 |
6.3%
|
| Sysmiss | 8 |