| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No prior child | 4778 |
8.5%
|
| 1 | 13056 |
23.2%
|
|
| 2 | 16319 |
29%
|
|
| 3 | 17945 |
31.9%
|
|
| 4 | 3737 |
6.7%
|
|
| 5 | 282 |
0.5%
|
|
| 6 | 61 |
0.1%
|