| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 4 |
0.8%
|
| 2 | Between 2 and 4 weeks | 12 |
2.5%
|
| 3 | Between 1 and 2 months | 17 |
3.5%
|
| 4 | Between 2 and 6 months | 62 |
12.8%
|
| 5 | More than 6 months | 233 |
48.2%
|
| 6 | Don’t know (uncertain) | 155 |
32.1%
|
| Sysmiss | 612 |