| Value | Category | Cases | |
|---|---|---|---|
| 1 | SERIOUSLY EXPOSED | 1955 |
6.9%
|
| 2 | MODERATELY EXPOSED | 9980 |
35.2%
|
| 3 | SLIGHTLY EXPOSED | 5844 |
20.6%
|
| 4 | NOT EXPOSED | 10549 |
37.2%
|
| Sysmiss | 17618 |