| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 14 |
2.8%
|
| 2 | Between 2 and 4 weeks | 6 |
1.2%
|
| 3 | Between 1 and 2 months | 21 |
4.2%
|
| 4 | Between 2 and 6 months | 30 |
6%
|
| 5 | More than 6 months | 126 |
25.1%
|
| 6 | Don’t know (uncertain) | 304 |
60.7%
|
| Sysmiss | 19755 |