| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 149 |
14.9%
|
| 2 | About one month | 249 |
24.9%
|
| 3 | About two months | 156 |
15.6%
|
| 4 | More than two months | 378 |
37.8%
|
| 5 | Don't know | 67 |
6.7%
|
| 6 | Refused | 1 |
0.1%
|