| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 127 |
12.7%
|
| 2 | About one month | 305 |
30.5%
|
| 3 | About two months | 175 |
17.5%
|
| 4 | More than two months | 285 |
28.5%
|
| 5 | Don't know | 91 |
9.1%
|
| 6 | Refused | 17 |
1.7%
|