| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 4497 |
77.9%
|
| 1 | Mild | 1092 |
18.9%
|
| 2 | Moderate | 166 |
2.9%
|
| 3 | Severe | 17 |
0.3%
|
| 4 | Extreme or can't do | 3 |
0.1%
|