| Value | Category | Cases | |
|---|---|---|---|
| 1 | very good | 28 |
10.7%
|
| 2 | satisfactory | 128 |
49%
|
| 3 | poor | 100 |
38.3%
|
| 8 | 1 |
0.4%
|
|
| 88 | don't know | 4 |
1.5%
|
| Sysmiss | 1260 |