| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 158 |
15.8%
|
| 2 | About one month | 359 |
35.9%
|
| 3 | About two months | 231 |
23.1%
|
| 4 | More than two months | 210 |
21%
|
| 5 | Don't know | 34 |
3.4%
|
| 6 | Refused | 8 |
0.8%
|