| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no prior child | 545 |
27.7%
|
| 1 | 242 |
12.3%
|
|
| 2 | 439 |
22.3%
|
|
| 3 | 490 |
24.9%
|
|
| 4 | 217 |
11%
|
|
| 5 | 32 |
1.6%
|
|
| 6 | 3 |
0.2%
|