| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 309 |
30.9%
|
| 2 | About one month | 250 |
25%
|
| 3 | About two months | 116 |
11.6%
|
| 4 | More than two months | 219 |
21.9%
|
| 5 | Don't know | 78 |
7.8%
|
| 6 | Refused | 28 |
2.8%
|