| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. very clean | 1277 |
30.1%
|
| 2 | 2. mostly clean | 2563 |
60.5%
|
| 3 | 3. mostly unclean | 299 |
7.1%
|
| 4 | 4. very unclean | 100 |
2.4%
|
| Sysmiss | 299 |