| Value | Category | Cases | |
|---|---|---|---|
| 1 | high | 45 |
17.5%
|
| 2 | average | 116 |
45.1%
|
| 3 | low | 56 |
21.8%
|
| 4 | none: not in operation | 40 |
15.6%
|
| Sysmiss | 1525 |