| Value | Category | Cases | |
|---|---|---|---|
| 0 | Negative | 1941 |
97.1%
|
| 5 | Trace | 44 |
2.2%
|
| 6 | Small | 9 |
0.5%
|
| 7 | Moderate | 4 |
0.2%
|
| 8 | Large | 0 |
0%
|
| Sysmiss | 1459 |