| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 123 |
12.3%
|
| 2 | About one month | 255 |
25.5%
|
| 3 | About two months | 153 |
15.3%
|
| 4 | More than two months | 425 |
42.5%
|
| 5 | Don't know | 42 |
4.2%
|
| 6 | Refused | 2 |
0.2%
|