| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than usual | 36 |
19.3%
|
| 1 | No more than usual | 35 |
18.7%
|
| 2 | More than usual | 65 |
34.8%
|
| 3 | Much more than usual | 51 |
27.3%
|