| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 119 |
11.1%
|
| 2 | About one month | 289 |
27.1%
|
| 3 | About two months | 165 |
15.4%
|
| 4 | More than two months | 417 |
39%
|
| 5 | Don't know | 75 |
7%
|
| 6 | Refused | 3 |
0.3%
|