| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 19 |
6.7%
|
| 1 | 1-2 indicators | 110 |
38.9%
|
| 2 | 3-9 indicators | 105 |
37.1%
|
| 3 | 10 or more indicators | 49 |
17.3%
|
| Sysmiss | 956 |