| Value | Category | Cases | |
|---|---|---|---|
| 1 | high | 1497 |
32%
|
| 2 | normal | 1910 |
40.8%
|
| 3 | low | 836 |
17.9%
|
| 4 | none, not in operation | 433 |
9.3%
|
| Sysmiss | 5433 |