| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | never | 9974 |
63.5%
|
| 1 | yes, last 12 months | 5214 |
33.2%
|
| 2 | yes, before last 12 months | 526 |
3.3%
|
| 3 | yes, can't establish when | 0 |
0%
|