| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Above 90% | 5 |
1.8%
|
| 2 | Between 50% and 90% | 72 |
25.9%
|
| 3 | Below 50% | 201 |
72.3%
|
| Sysmiss | 320 |