| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 2449 |
13.1%
|
| -8 | Refused | 6 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 2 |
0%
|
| 1 | Excellent | 4701 |
25.1%
|
| 2 | Very good | 5395 |
28.9%
|
| 3 | Good | 4648 |
24.9%
|
| 4 | Fair | 1064 |
5.7%
|
| 5 | Poor | 395 |
2.1%
|
| 6 | Blind | 37 |
0.2%
|
| Sysmiss | 3769 |