| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | never | 3281 |
57.8%
|
| 1 | yes, last 12 months | 2177 |
38.4%
|
| 2 | yes, before last 12 months | 215 |
3.8%
|
| 3 | yes, can't establish when | 0 |
0%
|