| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less able than usual | 10 |
2.9%
|
| 2 | More so than usual | 7 |
2%
|
| 3 | Much less than usual | 13 |
3.8%
|
| 4 | Same as usual | 295 |
85.5%
|
| Missing value | 20 |
5.8%
|