| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.9%
|
| 1 | 1-2 indicators | 44 |
41.5%
|
| 2 | 3-9 indicators | 46 |
43.4%
|
| 3 | 10 or more indicators | 15 |
14.2%
|
| Sysmiss | 259 |