| Value | Category | Cases | |
|---|---|---|---|
| 1 | Last 1 month | 1222 |
18.1%
|
| 2 | 1-3 months | 1608 |
23.8%
|
| 3 | 4-6 months | 1663 |
24.6%
|
| 4 | 7-12 months | 2263 |
33.5%
|
| e | Skipped in error | 0 | |
| m | Not administered in this wave | 0 | |
| z | Not applicable | 0 |