| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 113 |
11.3%
|
| 2 | About one month | 345 |
34.5%
|
| 3 | About two months | 159 |
15.9%
|
| 4 | More than two months | 331 |
33.1%
|
| 5 | Don't know | 39 |
3.9%
|
| 6 | Refused | 13 |
1.3%
|