| Value | Category | Cases | |
|---|---|---|---|
| 1 | low | 3 |
1.2%
|
| 2 | no pressure | 2 |
0.8%
|
| 3 | medium | 11 |
4.3%
|
| 4 | high | 240 |
93.8%
|
| Sysmiss | 113 |