| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. none | 3762 |
86.3%
|
| 1 | 1. low | 123 |
2.8%
|
| 2 | 2. middle | 235 |
5.4%
|
| 3 | 3. highest | 241 |
5.5%
|
| Sysmiss | 177 |