| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Currently using | 507 |
10.6%
|
| 2 | Used since last brth | 0 |
0%
|
| 3 | Used before last brt | 694 |
14.6%
|
| 4 | Never used | 3563 |
74.8%
|