| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
2.4%
|
| 1 | 1-2 indicators | 47 |
28.5%
|
| 2 | 3-9 indicators | 65 |
39.4%
|
| 3 | 10 or more indicators | 49 |
29.7%
|
| Sysmiss | 436 |