| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 6 |
3.4%
|
| 2 | Between 2 and 4 weeks | 5 |
2.8%
|
| 3 | Between 1 and 2 months | 20 |
11.4%
|
| 4 | Between 2 and 6 months | 11 |
6.3%
|
| 5 | More than 6 months | 41 |
23.3%
|
| 6 | Don’t know (uncertain) | 93 |
52.8%
|
| Sysmiss | 1824 |