| Value | Category | Cases | |
|---|---|---|---|
| 1 | low | 275 |
46.5%
|
| 2 | no pressure | 101 |
17.1%
|
| 3 | medium | 181 |
30.6%
|
| 4 | high | 35 |
5.9%
|
| Sysmiss | 321 |