| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 4997 |
76.7%
|
| 1 | yes, last 12 months | 1411 |
21.7%
|
| 2 | yes, before last 12 months | 105 |
1.6%
|
| 3 | yes, can't establish when | 0 |
0%
|