| Value | Category | Cases | |
|---|---|---|---|
| 0 | no prior child | 6357 |
10.2%
|
| 1 | 38971 |
62.3%
|
|
| 2 | 13004 |
20.8%
|
|
| 3 | 3603 |
5.8%
|
|
| 4 | 628 |
1%
|
|
| 5 | 30 |
0%
|