| Value | Category | Cases | |
|---|---|---|---|
| -3 | Not applicable; Father unknown | 7 |
0.6%
|
| -2 | No answer | 15 |
1.2%
|
| -1 | Don't know | 38 |
3.1%
|
| 1 | Lower | 287 |
23.5%
|
| 2 | Middle | 422 |
34.5%
|
| 3 | Higher | 454 |
37.1%
|