| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Currently using | 861 |
16.9%
|
| 2 | Used since last birth | 292 |
5.7%
|
| 3 | Used before last birth | 271 |
5.3%
|
| 4 | Never used | 3664 |
72%
|