| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
5.1%
|
| 1 | 1-2 indicators | 91 |
51.7%
|
| 2 | 3-9 indicators | 68 |
38.6%
|
| 3 | 10 or more indicators | 8 |
4.5%
|
| Sysmiss | 920 |