| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.9%
|
| 1 | 1-2 indicators | 131 |
59%
|
| 2 | 3-9 indicators | 70 |
31.5%
|
| 3 | 10 or more indicators | 19 |
8.6%
|
| Sysmiss | 379 |