| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.8%
|
| 0 | 1 |
0.4%
|
|
| 1 | 1-2 indicators | 60 |
22.8%
|
| 2 | 3-9 indicators | 156 |
59.3%
|
| 3 | 10 or more indicators | 44 |
16.7%
|
| Sysmiss | 692 |