| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 103 |
10.3%
|
| 2 | About one month | 303 |
30.3%
|
| 3 | About two months | 176 |
17.6%
|
| 4 | More than two months | 391 |
39.1%
|
| 5 | Don't know | 24 |
2.4%
|
| 6 | Refused | 3 |
0.3%
|