| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 272 |
27.2%
|
| 2 | About one month | 295 |
29.5%
|
| 3 | About two months | 169 |
16.9%
|
| 4 | More than two months | 133 |
13.3%
|
| 5 | Don't know | 119 |
11.9%
|
| 6 | Refused | 12 |
1.2%
|