| Value | Category | Cases | |
|---|---|---|---|
| 1 | high | 99 |
38.5%
|
| 2 | average | 90 |
35%
|
| 3 | low | 47 |
18.3%
|
| 4 | none: not in operation | 21 |
8.2%
|
| Sysmiss | 1525 |