| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 6 |
2.3%
|
| 2 | Between 2 and 4 weeks | 2 |
0.8%
|
| 3 | Between 1 and 2 months | 8 |
3.1%
|
| 4 | Between 2 and 6 months | 16 |
6.2%
|
| 5 | More than 6 months | 68 |
26.4%
|
| 6 | Don’t know (uncertain) | 158 |
61.2%
|
| Sysmiss | 2315 |