| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 187 |
18.7%
|
| 2 | About one month | 266 |
26.6%
|
| 3 | About two months | 155 |
15.5%
|
| 4 | More than two months | 298 |
29.8%
|
| 5 | Don't know | 84 |
8.4%
|
| 6 | Refused | 10 |
1%
|