| Value | Category | Cases | |
|---|---|---|---|
| 1 | light | 393 |
7%
|
| 2 | moderate | 2106 |
37.4%
|
| 3 | difficult | 2065 |
36.7%
|
| 4 | severe | 1064 |
18.9%
|
| Sysmiss | 11747 |