| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no prior child | 8491 |
54%
|
| 1 | 1877 |
11.9%
|
|
| 2 | 2210 |
14.1%
|
|
| 3 | 2160 |
13.7%
|
|
| 4 | 859 |
5.5%
|
|
| 5 | 104 |
0.7%
|
|
| 6 | 10 |
0.1%
|
|
| 7 | 3 |
0%
|