| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refuse to answer | 0 |
0%
|
| 1 | Poor | 7 |
1.6%
|
| 2 | Fair | 51 |
11.6%
|
| 3 | Good | 243 |
55.1%
|
| 4 | Excellent | 140 |
31.7%
|
| Sysmiss | 96 |