| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | never | 1352 |
68.7%
|
| 1 | yes, last 12 months | 557 |
28.3%
|
| 2 | yes, before last 12 months | 59 |
3%
|
| 3 | yes, can't establish when | 0 |
0%
|