| Value | Category | Cases | |
|---|---|---|---|
| 1 | Clean | 1219 |
55.9%
|
| 2 | Dirty | 810 |
37.1%
|
| 3 | Dusty | 139 |
6.4%
|
| 4 | Could not observe | 13 |
0.6%
|
| Sysmiss | 67 |