| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 12 |
0.7%
|
| 2 | Between 2 and 4 weeks | 18 |
1%
|
| 3 | Between 1 and 2 months | 77 |
4.3%
|
| 4 | Between 2 and 6 months | 114 |
6.4%
|
| 5 | More than 6 months | 760 |
42.5%
|
| 6 | Don’t know (uncertain) | 807 |
45.1%
|
| Sysmiss | 2159 |