| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 4 |
1.9%
|
| 2 | Between 2 and 4 weeks | 10 |
4.8%
|
| 3 | Between 1 and 2 months | 13 |
6.2%
|
| 4 | Between 2 and 6 months | 20 |
9.5%
|
| 5 | More than 6 months | 73 |
34.8%
|
| 6 | Don’t know (uncertain) | 90 |
42.9%
|
| Sysmiss | 3285 |