| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than usual | 34 |
18.3%
|
| 1 | No more than usual | 99 |
53.2%
|
| 2 | More than usual | 21 |
11.3%
|
| 3 | Much more than usual | 32 |
17.2%
|