| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 195 |
19.5%
|
| 2 | About one month | 372 |
37.2%
|
| 3 | About two months | 184 |
18.4%
|
| 4 | More than two months | 188 |
18.8%
|
| 5 | Don't know | 56 |
5.6%
|
| 6 | Refused | 5 |
0.5%
|