| Value | Category | Cases | |
|---|---|---|---|
| 0 | Poor | 2 |
2.9%
|
| 1 | Average | 5 |
7.2%
|
| 2 | Good | 24 |
34.8%
|
| 3 | Excellent | 28 |
40.6%
|
| 99 | Not used | 10 |
14.5%
|
| Sysmiss | 613 |