| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Currently using | 2294 |
15.2%
|
| 2 | Used since last birth | 510 |
3.4%
|
| 3 | Used before last birth | 902 |
6%
|
| 4 | Never used | 11338 |
75.4%
|