| value | category | cases | |
|---|---|---|---|
| 0 | No prior child | 3055 |
28.7%
|
| 2 | 2156 |
20.3%
|
|
| 3 | 4435 |
41.7%
|
|
| 4 | 940 |
8.8%
|
|
| 5 | 59 |
0.6%
|