| Valeur | Modalité | Cas | |
|---|---|---|---|
| 3 | Yes, for one year or longer | 317 |
25.4%
|
| 10 | No, never | 704 |
56.5%
|
| 11 | Yes, for less than a year | 215 |
17.3%
|
| Sysmiss | 10 |