| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 204 |
20.4%
|
| 2 | About one month | 260 |
26%
|
| 3 | About two months | 187 |
18.7%
|
| 4 | More than two months | 240 |
24%
|
| 5 | Don't know | 106 |
10.6%
|
| 6 | Refused | 3 |
0.3%
|