| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 235 |
23.5%
|
| 2 | About one month | 375 |
37.5%
|
| 3 | About two months | 184 |
18.4%
|
| 4 | More than two months | 132 |
13.2%
|
| 5 | Don't know | 73 |
7.3%
|
| 6 | Refused | 1 |
0.1%
|