| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 18 |
1.9%
|
| 2 | Between 2 and 4 weeks | 16 |
1.7%
|
| 3 | Between 1 and 2 months | 35 |
3.6%
|
| 4 | Between 2 and 6 months | 35 |
3.6%
|
| 5 | More than 6 months | 228 |
23.7%
|
| 6 | Don’t know (uncertain) | 629 |
65.5%
|
| Sysmiss | 19295 |