| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 weeks | 11 |
10.4%
|
| 2 | Between 2 and 4 weeks | 4 |
3.8%
|
| 3 | Between 1 and 2 months | 9 |
8.5%
|
| 4 | Between 2 and 6 months | 16 |
15.1%
|
| 5 | More than 6 months | 16 |
15.1%
|
| 6 | Never | 10 |
9.4%
|
| 7 | Don’t know (uncertain) | 40 |
37.7%
|
| Sysmiss | 20150 |