| Value | Category | Cases | |
|---|---|---|---|
| 1 | Much more than usual | 60 |
5.5%
|
| 2 | More than usual | 138 |
12.7%
|
| 3 | Same as usual | 408 |
37.4%
|
| 4 | Less than usual | 168 |
15.4%
|
| 5 | Much less than usual | 316 |
29%
|
| 9 | Missing | 0 |
0%
|