| value | category | cases | |
|---|---|---|---|
| 0 | No prior child | 3308 |
8%
|
| 1 | 9721 |
23.4%
|
|
| 2 | 11963 |
28.8%
|
|
| 3 | 13924 |
33.5%
|
|
| 4 | 2455 |
5.9%
|
|
| 5 | 149 |
0.4%
|