| Value | Category | Cases | |
|---|---|---|---|
| 0 | no prior child | 851 |
28.2%
|
| 1 | 598 |
19.8%
|
|
| 2 | 910 |
30.2%
|
|
| 3 | 549 |
18.2%
|
|
| 4 | 102 |
3.4%
|
|
| 5 | 6 |
0.2%
|
|
| 6 | 1 |
0%
|