| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 4 |
12.9%
|
| -1 | refuse | 0 |
0%
|
| 1 | Very bad | 0 |
0%
|
| 3 | 1 |
3.2%
|
|
| 4 | 6 |
19.4%
|
|
| 5 | Very good | 20 |
64.5%
|
| Sysmiss | 1018 |