| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Currently using | 772 |
14.5%
|
| 2 | Used since last birth | 117 |
2.2%
|
| 3 | Used before last birth | 310 |
5.8%
|
| 4 | Never used | 4130 |
77.5%
|