| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 166 |
16.4%
|
| 2 | About one month | 271 |
26.8%
|
| 3 | About two months | 151 |
15%
|
| 4 | More than two months | 308 |
30.5%
|
| 5 | Don't know | 98 |
9.7%
|
| 6 | Refused | 16 |
1.6%
|