| Value | Category | Cases | |
|---|---|---|---|
| 0 | Poor | 1 |
1.4%
|
| 1 | Average | 10 |
14.5%
|
| 2 | Good | 14 |
20.3%
|
| 3 | Excellent | 20 |
29%
|
| 99 | Not used | 24 |
34.8%
|
| Sysmiss | 613 |