| Value | Category | Cases | |
|---|---|---|---|
| 1 | No waste visible | 165 |
41.5%
|
| 2 | Waste visible, protected area | 205 |
51.5%
|
| 3 | Waste visible, unprotected area | 26 |
6.5%
|
| 4 | Not inspected | 2 |
0.5%
|
| Sysmiss | 3 |