| Value | Category | Cases | |
|---|---|---|---|
| 1 | high | 75 |
29.2%
|
| 2 | average | 64 |
24.9%
|
| 3 | low | 64 |
24.9%
|
| 4 | none: not in operation | 54 |
21%
|
| Sysmiss | 1525 |