| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 107 |
10.7%
|
| 2 | About one month | 292 |
29.2%
|
| 3 | About two months | 148 |
14.8%
|
| 4 | More than two months | 323 |
32.3%
|
| 5 | Don't know | 119 |
11.9%
|
| 6 | Refused | 11 |
1.1%
|