| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 154 |
15.1%
|
| 2 | About one month | 237 |
23.2%
|
| 3 | About two months | 159 |
15.6%
|
| 4 | More than two months | 295 |
28.9%
|
| 5 | Don't know | 162 |
15.9%
|
| 6 | Refused | 13 |
1.3%
|