| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 156 |
15.6%
|
| 2 | About one month | 365 |
36.5%
|
| 3 | About two months | 159 |
15.9%
|
| 4 | More than two months | 241 |
24.1%
|
| 5 | Don't know | 68 |
6.8%
|
| 6 | Refused | 11 |
1.1%
|