| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
0.2%
|
| 1 | 1-2 indicators | 1597 |
50.8%
|
| 2 | 3-9 indicators | 1271 |
40.4%
|
| 3 | 10 or more indicators | 271 |
8.6%
|
| Sysmiss | 6232 |