| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| 1 | 1-2 indicators | 40 |
33.3%
|
| 2 | 3-9 indicators | 54 |
45%
|
| 3 | 10 or more indicators | 25 |
20.8%
|
| Sysmiss | 309 |