| Value | Category | Cases | |
|---|---|---|---|
| 1 | MUCH DIRTIER | 1 |
0.9%
|
| 2 | dirtier | 16 |
14.7%
|
| 3 | ABOUT THE SAME | 66 |
60.6%
|
| 4 | cleaner | 25 |
22.9%
|
| 5 | MUCH CLEANER | 1 |
0.9%
|