| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 13 |
1.2%
|
| 2 | Low | 58 |
5.5%
|
| 3 | High | 747 |
71.3%
|
| 4 | Certain | 230 |
21.9%
|
| 9 | Missing | 0 |
0%
|