| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. does not exist | 1726 |
38.4%
|
| 1 | 1. poor | 508 |
11.3%
|
| 2 | 2. average | 574 |
12.8%
|
| 3 | 3. good | 773 |
17.2%
|
| 4 | 4. very good | 897 |
19.9%
|
| 77 | 77. d/r | 0 |
0%
|
| 99 | 99. missing | 20 |
0.4%
|
| Sysmiss | 40 |