| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 1 | Very poor | 2 |
4%
|
| 2 | Poor | 1 |
2%
|
| 3 | Good | 17 |
34%
|
| 4 | Very good | 30 |
60%
|
| Sysmiss | 461 |