| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 102 |
10.2%
|
| 2 | About one month | 356 |
35.6%
|
| 3 | About two months | 189 |
18.9%
|
| 4 | More than two months | 207 |
20.7%
|
| 5 | Don't know | 134 |
13.4%
|
| 6 | Refused | 12 |
1.2%
|