| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 3 | Yes, for one year or more | 2974 |
19.2%
|
| 10 | No, never | 11759 |
76%
|
| 11 | Yes, less than one year | 732 |
4.7%
|
| Sysmiss | 147 |