| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no prior child | 4769 |
9.2%
|
| 1 | 14397 |
27.9%
|
|
| 2 | 18559 |
36%
|
|
| 3 | 11850 |
23%
|
|
| 4 | 1879 |
3.6%
|
|
| 5 | 130 |
0.3%
|
|
| 6 | 8 |
0%
|