| Value | Category | Cases | |
|---|---|---|---|
| 1 | SERIOUSLY EXPOSED | 571 |
8.9%
|
| 2 | MODERATELY EXPOSED | 2058 |
31.9%
|
| 3 | SLIGHTLY EXPOSED | 1659 |
25.7%
|
| 4 | NOT EXPOSED | 2158 |
33.5%
|
| Sysmiss | 19411 |