| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 145 |
14.5%
|
| 2 | About one month | 238 |
23.8%
|
| 3 | About two months | 174 |
17.4%
|
| 4 | More than two months | 378 |
37.8%
|
| 5 | Don't know | 47 |
4.7%
|
| 6 | Refused | 18 |
1.8%
|