| Value | Category | Cases | |
|---|---|---|---|
| 1 | high | 982 |
21%
|
| 2 | normal | 1724 |
36.8%
|
| 3 | low | 1614 |
34.4%
|
| 4 | none, not in operation | 367 |
7.8%
|
| Sysmiss | 5422 |