| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Excellent | 9 |
4.4%
|
| 2 | 2. Very good | 27 |
13.2%
|
| 3 | 3. Good | 98 |
48%
|
| 4 | 4. Fair | 47 |
23%
|
| 5 | 5. Poor | 22 |
10.8%
|
| 6 | 6. Blind | 1 |
0.5%
|
| Sysmiss | 795 |